20201621874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{78121}}^1$

素因数の和:78311

約数の個数: 64

約数和(自身を含む): 47518175232

約数和(自身を除く): 27316553358

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 131, 141, 262, 282, 329, 393, 658, 786, 917, 987, 1834, 1974, 2751, 5502, 6157, 12314, 18471, 36942, 43099, 78121, 86198, 129297, 156242, 234363, 258594, 468726, 546847, 1093694, 1640541, 3281082, 3671687, 7343374, 10233851, 11015061, 20467702, 22030122, 25701809, 30701553, 51403618, 61403106, 71636957, 77105427, 143273914, 154210854, 214910871, 429821742, 480990997, 961981994, 1442972991, 2885945982, 3366936979, 6733873958, 10100810937, 20201621874]

約数ペア:

[(1, 20201621874), (2, 10100810937), (3, 6733873958), (6, 3366936979), (7, 2885945982), (14, 1442972991), (21, 961981994), (42, 480990997), (47, 429821742), (94, 214910871), (131, 154210854), (141, 143273914), (262, 77105427), (282, 71636957), (329, 61403106), (393, 51403618), (658, 30701553), (786, 25701809), (917, 22030122), (987, 20467702), (1834, 11015061), (1974, 10233851), (2751, 7343374), (5502, 3671687), (6157, 3281082), (12314, 1640541), (18471, 1093694), (36942, 546847), (43099, 468726), (78121, 258594), (86198, 234363), (129297, 156242)]