21590240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 59984064

約数和(自身を除く): 38393824

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 160, 185, 224, 259, 280, 296, 370, 518, 521, 560, 592, 740, 1036, 1042, 1120, 1184, 1295, 1480, 2072, 2084, 2590, 2605, 2960, 3647, 4144, 4168, 5180, 5210, 5920, 7294, 8288, 8336, 10360, 10420, 14588, 16672, 18235, 19277, 20720, 20840, 29176, 36470, 38554, 41440, 41680, 58352, 72940, 77108, 83360, 96385, 116704, 134939, 145880, 154216, 192770, 269878, 291760, 308432, 385540, 539756, 583520, 616864, 674695, 771080, 1079512, 1349390, 1542160, 2159024, 2698780, 3084320, 4318048, 5397560, 10795120, 21590240]

約数ペア:

[(1, 21590240), (2, 10795120), (4, 5397560), (5, 4318048), (7, 3084320), (8, 2698780), (10, 2159024), (14, 1542160), (16, 1349390), (20, 1079512), (28, 771080), (32, 674695), (35, 616864), (37, 583520), (40, 539756), (56, 385540), (70, 308432), (74, 291760), (80, 269878), (112, 192770), (140, 154216), (148, 145880), (160, 134939), (185, 116704), (224, 96385), (259, 83360), (280, 77108), (296, 72940), (370, 58352), (518, 41680), (521, 41440), (560, 38554), (592, 36470), (740, 29176), (1036, 20840), (1042, 20720), (1120, 19277), (1184, 18235), (1295, 16672), (1480, 14588), (2072, 10420), (2084, 10360), (2590, 8336), (2605, 8288), (2960, 7294), (3647, 5920), (4144, 5210), (4168, 5180)]