21525420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{967}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 70253568

約数和(自身を除く): 48728148

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 53, 60, 70, 84, 105, 106, 140, 159, 210, 212, 265, 318, 371, 420, 530, 636, 742, 795, 967, 1060, 1113, 1484, 1590, 1855, 1934, 2226, 2901, 3180, 3710, 3868, 4452, 4835, 5565, 5802, 6769, 7420, 9670, 11130, 11604, 13538, 14505, 19340, 20307, 22260, 27076, 29010, 33845, 40614, 51251, 58020, 67690, 81228, 101535, 102502, 135380, 153753, 203070, 205004, 256255, 307506, 358757, 406140, 512510, 615012, 717514, 768765, 1025020, 1076271, 1435028, 1537530, 1793785, 2152542, 3075060, 3587570, 4305084, 5381355, 7175140, 10762710, 21525420]

約数ペア:

[(1, 21525420), (2, 10762710), (3, 7175140), (4, 5381355), (5, 4305084), (6, 3587570), (7, 3075060), (10, 2152542), (12, 1793785), (14, 1537530), (15, 1435028), (20, 1076271), (21, 1025020), (28, 768765), (30, 717514), (35, 615012), (42, 512510), (53, 406140), (60, 358757), (70, 307506), (84, 256255), (105, 205004), (106, 203070), (140, 153753), (159, 135380), (210, 102502), (212, 101535), (265, 81228), (318, 67690), (371, 58020), (420, 51251), (530, 40614), (636, 33845), (742, 29010), (795, 27076), (967, 22260), (1060, 20307), (1113, 19340), (1484, 14505), (1590, 13538), (1855, 11604), (1934, 11130), (2226, 9670), (2901, 7420), (3180, 6769), (3710, 5802), (3868, 5565), (4452, 4835)]