21740460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1399}}^1$

素因数の和:1455

約数の個数: 96

約数和(自身を含む): 71500800

約数和(自身を除く): 49760340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1399, 1554, 2220, 2590, 2798, 3108, 3885, 4197, 5180, 5596, 6995, 7770, 8394, 9793, 13990, 15540, 16788, 19586, 20985, 27980, 29379, 39172, 41970, 48965, 51763, 58758, 83940, 97930, 103526, 117516, 146895, 155289, 195860, 207052, 258815, 293790, 310578, 362341, 517630, 587580, 621156, 724682, 776445, 1035260, 1087023, 1449364, 1552890, 1811705, 2174046, 3105780, 3623410, 4348092, 5435115, 7246820, 10870230, 21740460]

約数ペア:

[(1, 21740460), (2, 10870230), (3, 7246820), (4, 5435115), (5, 4348092), (6, 3623410), (7, 3105780), (10, 2174046), (12, 1811705), (14, 1552890), (15, 1449364), (20, 1087023), (21, 1035260), (28, 776445), (30, 724682), (35, 621156), (37, 587580), (42, 517630), (60, 362341), (70, 310578), (74, 293790), (84, 258815), (105, 207052), (111, 195860), (140, 155289), (148, 146895), (185, 117516), (210, 103526), (222, 97930), (259, 83940), (370, 58758), (420, 51763), (444, 48965), (518, 41970), (555, 39172), (740, 29379), (777, 27980), (1036, 20985), (1110, 19586), (1295, 16788), (1399, 15540), (1554, 13990), (2220, 9793), (2590, 8394), (2798, 7770), (3108, 6995), (3885, 5596), (4197, 5180)]