19902456

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13163}}^1$

素因数の和:13185

約数の個数: 64

約数和(自身を含む): 63187200

約数和(自身を除く): 43284744

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 13163, 26326, 39489, 52652, 78978, 92141, 105304, 118467, 157956, 184282, 236934, 276423, 315912, 355401, 368564, 473868, 552846, 710802, 737128, 829269, 947736, 1105692, 1421604, 1658538, 2211384, 2487807, 2843208, 3317076, 4975614, 6634152, 9951228, 19902456]

約数ペア:

[(1, 19902456), (2, 9951228), (3, 6634152), (4, 4975614), (6, 3317076), (7, 2843208), (8, 2487807), (9, 2211384), (12, 1658538), (14, 1421604), (18, 1105692), (21, 947736), (24, 829269), (27, 737128), (28, 710802), (36, 552846), (42, 473868), (54, 368564), (56, 355401), (63, 315912), (72, 276423), (84, 236934), (108, 184282), (126, 157956), (168, 118467), (189, 105304), (216, 92141), (252, 78978), (378, 52652), (504, 39489), (756, 26326), (1512, 13163)]