21463920

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{523}}^1$

素因数の和:564

約数の個数: 160

約数和(自身を含む): 77971200

約数和(自身を除く): 56507280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 90, 95, 108, 114, 120, 135, 144, 152, 171, 180, 190, 216, 228, 240, 270, 285, 304, 342, 360, 380, 432, 456, 513, 523, 540, 570, 684, 720, 760, 855, 912, 1026, 1046, 1080, 1140, 1368, 1520, 1569, 1710, 2052, 2092, 2160, 2280, 2565, 2615, 2736, 3138, 3420, 4104, 4184, 4560, 4707, 5130, 5230, 6276, 6840, 7845, 8208, 8368, 9414, 9937, 10260, 10460, 12552, 13680, 14121, 15690, 18828, 19874, 20520, 20920, 23535, 25104, 28242, 29811, 31380, 37656, 39748, 41040, 41840, 47070, 49685, 56484, 59622, 62760, 70605, 75312, 79496, 89433, 94140, 99370, 112968, 119244, 125520, 141210, 149055, 158992, 178866, 188280, 198740, 225936, 238488, 268299, 282420, 298110, 357732, 376560, 397480, 447165, 476976, 536598, 564840, 596220, 715464, 794960, 894330, 1073196, 1129680, 1192440, 1341495, 1430928, 1788660, 2146392, 2384880, 2682990, 3577320, 4292784, 5365980, 7154640, 10731960, 21463920]

約数ペア:

[(1, 21463920), (2, 10731960), (3, 7154640), (4, 5365980), (5, 4292784), (6, 3577320), (8, 2682990), (9, 2384880), (10, 2146392), (12, 1788660), (15, 1430928), (16, 1341495), (18, 1192440), (19, 1129680), (20, 1073196), (24, 894330), (27, 794960), (30, 715464), (36, 596220), (38, 564840), (40, 536598), (45, 476976), (48, 447165), (54, 397480), (57, 376560), (60, 357732), (72, 298110), (76, 282420), (80, 268299), (90, 238488), (95, 225936), (108, 198740), (114, 188280), (120, 178866), (135, 158992), (144, 149055), (152, 141210), (171, 125520), (180, 119244), (190, 112968), (216, 99370), (228, 94140), (240, 89433), (270, 79496), (285, 75312), (304, 70605), (342, 62760), (360, 59622), (380, 56484), (432, 49685), (456, 47070), (513, 41840), (523, 41040), (540, 39748), (570, 37656), (684, 31380), (720, 29811), (760, 28242), (855, 25104), (912, 23535), (1026, 20920), (1046, 20520), (1080, 19874), (1140, 18828), (1368, 15690), (1520, 14121), (1569, 13680), (1710, 12552), (2052, 10460), (2092, 10260), (2160, 9937), (2280, 9414), (2565, 8368), (2615, 8208), (2736, 7845), (3138, 6840), (3420, 6276), (4104, 5230), (4184, 5130), (4560, 4707)]