21733460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{331}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 54046944

約数和(自身を除く): 32313484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 331, 335, 469, 490, 662, 670, 938, 980, 1324, 1340, 1655, 1876, 2317, 2345, 3283, 3310, 4634, 4690, 6566, 6620, 9268, 9380, 11585, 13132, 16219, 16415, 22177, 23170, 32438, 32830, 44354, 46340, 64876, 65660, 81095, 88708, 110885, 155239, 162190, 221770, 310478, 324380, 443540, 620956, 776195, 1086673, 1552390, 2173346, 3104780, 4346692, 5433365, 10866730, 21733460]

約数ペア:

[(1, 21733460), (2, 10866730), (4, 5433365), (5, 4346692), (7, 3104780), (10, 2173346), (14, 1552390), (20, 1086673), (28, 776195), (35, 620956), (49, 443540), (67, 324380), (70, 310478), (98, 221770), (134, 162190), (140, 155239), (196, 110885), (245, 88708), (268, 81095), (331, 65660), (335, 64876), (469, 46340), (490, 44354), (662, 32830), (670, 32438), (938, 23170), (980, 22177), (1324, 16415), (1340, 16219), (1655, 13132), (1876, 11585), (2317, 9380), (2345, 9268), (3283, 6620), (3310, 6566), (4634, 4690)]