20501676

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 56687904

約数和(自身を除く): 36186228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 71, 78, 117, 142, 156, 213, 234, 284, 426, 468, 617, 639, 852, 923, 1234, 1278, 1846, 1851, 2468, 2556, 2769, 3692, 3702, 5538, 5553, 7404, 8021, 8307, 11076, 11106, 16042, 16614, 22212, 24063, 32084, 33228, 43807, 48126, 72189, 87614, 96252, 131421, 144378, 175228, 262842, 288756, 394263, 525684, 569491, 788526, 1138982, 1577052, 1708473, 2277964, 3416946, 5125419, 6833892, 10250838, 20501676]

約数ペア:

[(1, 20501676), (2, 10250838), (3, 6833892), (4, 5125419), (6, 3416946), (9, 2277964), (12, 1708473), (13, 1577052), (18, 1138982), (26, 788526), (36, 569491), (39, 525684), (52, 394263), (71, 288756), (78, 262842), (117, 175228), (142, 144378), (156, 131421), (213, 96252), (234, 87614), (284, 72189), (426, 48126), (468, 43807), (617, 33228), (639, 32084), (852, 24063), (923, 22212), (1234, 16614), (1278, 16042), (1846, 11106), (1851, 11076), (2468, 8307), (2556, 8021), (2769, 7404), (3692, 5553), (3702, 5538)]