20657992488

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{392857}}^1$

素因数の和:393186

約数の個数: 64

約数和(自身を含む): 59211557760

約数和(自身を除く): 38553565272

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 313, 626, 939, 1252, 1878, 2191, 2504, 3756, 4382, 6573, 7512, 8764, 13146, 17528, 26292, 52584, 392857, 785714, 1178571, 1571428, 2357142, 2749999, 3142856, 4714284, 5499998, 8249997, 9428568, 10999996, 16499994, 21999992, 32999988, 65999976, 122964241, 245928482, 368892723, 491856964, 737785446, 860749687, 983713928, 1475570892, 1721499374, 2582249061, 2951141784, 3442998748, 5164498122, 6885997496, 10328996244, 20657992488]

約数ペア:

[(1, 20657992488), (2, 10328996244), (3, 6885997496), (4, 5164498122), (6, 3442998748), (7, 2951141784), (8, 2582249061), (12, 1721499374), (14, 1475570892), (21, 983713928), (24, 860749687), (28, 737785446), (42, 491856964), (56, 368892723), (84, 245928482), (168, 122964241), (313, 65999976), (626, 32999988), (939, 21999992), (1252, 16499994), (1878, 10999996), (2191, 9428568), (2504, 8249997), (3756, 5499998), (4382, 4714284), (6573, 3142856), (7512, 2749999), (8764, 2357142), (13146, 1571428), (17528, 1178571), (26292, 785714), (52584, 392857)]