21903480

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1193}}^1$

素因数の和:1230

約数の個数: 128

約数和(自身を含む): 77371200

約数和(自身を除く): 55467720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1193, 1224, 1530, 1836, 2040, 2295, 2386, 3060, 3579, 3672, 4590, 4772, 5965, 6120, 7158, 9180, 9544, 10737, 11930, 14316, 17895, 18360, 20281, 21474, 23860, 28632, 32211, 35790, 40562, 42948, 47720, 53685, 60843, 64422, 71580, 81124, 85896, 101405, 107370, 121686, 128844, 143160, 161055, 162248, 182529, 202810, 214740, 243372, 257688, 304215, 322110, 365058, 405620, 429480, 486744, 547587, 608430, 644220, 730116, 811240, 912645, 1095174, 1216860, 1288440, 1460232, 1825290, 2190348, 2433720, 2737935, 3650580, 4380696, 5475870, 7301160, 10951740, 21903480]

約数ペア:

[(1, 21903480), (2, 10951740), (3, 7301160), (4, 5475870), (5, 4380696), (6, 3650580), (8, 2737935), (9, 2433720), (10, 2190348), (12, 1825290), (15, 1460232), (17, 1288440), (18, 1216860), (20, 1095174), (24, 912645), (27, 811240), (30, 730116), (34, 644220), (36, 608430), (40, 547587), (45, 486744), (51, 429480), (54, 405620), (60, 365058), (68, 322110), (72, 304215), (85, 257688), (90, 243372), (102, 214740), (108, 202810), (120, 182529), (135, 162248), (136, 161055), (153, 143160), (170, 128844), (180, 121686), (204, 107370), (216, 101405), (255, 85896), (270, 81124), (306, 71580), (340, 64422), (360, 60843), (408, 53685), (459, 47720), (510, 42948), (540, 40562), (612, 35790), (680, 32211), (765, 28632), (918, 23860), (1020, 21474), (1080, 20281), (1193, 18360), (1224, 17895), (1530, 14316), (1836, 11930), (2040, 10737), (2295, 9544), (2386, 9180), (3060, 7158), (3579, 6120), (3672, 5965), (4590, 4772)]