21032760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^4\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 160

約数和(自身を含む): 74618640

約数和(自身を除く): 53585880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 73, 84, 98, 105, 120, 140, 146, 147, 168, 196, 210, 219, 245, 280, 292, 294, 343, 365, 392, 420, 438, 490, 511, 584, 588, 686, 730, 735, 840, 876, 980, 1022, 1029, 1095, 1176, 1372, 1460, 1470, 1533, 1715, 1752, 1960, 2044, 2058, 2190, 2401, 2555, 2744, 2920, 2940, 3066, 3430, 3577, 4088, 4116, 4380, 4802, 5110, 5145, 5880, 6132, 6860, 7154, 7203, 7665, 8232, 8760, 9604, 10220, 10290, 10731, 12005, 12264, 13720, 14308, 14406, 15330, 17885, 19208, 20440, 20580, 21462, 24010, 25039, 28616, 28812, 30660, 35770, 36015, 41160, 42924, 48020, 50078, 53655, 57624, 61320, 71540, 72030, 75117, 85848, 96040, 100156, 107310, 125195, 143080, 144060, 150234, 175273, 200312, 214620, 250390, 288120, 300468, 350546, 375585, 429240, 500780, 525819, 600936, 701092, 751170, 876365, 1001560, 1051638, 1402184, 1502340, 1752730, 2103276, 2629095, 3004680, 3505460, 4206552, 5258190, 7010920, 10516380, 21032760]

約数ペア:

[(1, 21032760), (2, 10516380), (3, 7010920), (4, 5258190), (5, 4206552), (6, 3505460), (7, 3004680), (8, 2629095), (10, 2103276), (12, 1752730), (14, 1502340), (15, 1402184), (20, 1051638), (21, 1001560), (24, 876365), (28, 751170), (30, 701092), (35, 600936), (40, 525819), (42, 500780), (49, 429240), (56, 375585), (60, 350546), (70, 300468), (73, 288120), (84, 250390), (98, 214620), (105, 200312), (120, 175273), (140, 150234), (146, 144060), (147, 143080), (168, 125195), (196, 107310), (210, 100156), (219, 96040), (245, 85848), (280, 75117), (292, 72030), (294, 71540), (343, 61320), (365, 57624), (392, 53655), (420, 50078), (438, 48020), (490, 42924), (511, 41160), (584, 36015), (588, 35770), (686, 30660), (730, 28812), (735, 28616), (840, 25039), (876, 24010), (980, 21462), (1022, 20580), (1029, 20440), (1095, 19208), (1176, 17885), (1372, 15330), (1460, 14406), (1470, 14308), (1533, 13720), (1715, 12264), (1752, 12005), (1960, 10731), (2044, 10290), (2058, 10220), (2190, 9604), (2401, 8760), (2555, 8232), (2744, 7665), (2920, 7203), (2940, 7154), (3066, 6860), (3430, 6132), (3577, 5880), (4088, 5145), (4116, 5110), (4380, 4802)]