21463460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 46632432

約数和(自身を除く): 25168972

約数列:

[1, 2, 4, 5, 10, 20, 61, 73, 122, 146, 241, 244, 292, 305, 365, 482, 610, 730, 964, 1205, 1220, 1460, 2410, 4453, 4820, 8906, 14701, 17593, 17812, 22265, 29402, 35186, 44530, 58804, 70372, 73505, 87965, 89060, 147010, 175930, 294020, 351860, 1073173, 2146346, 4292692, 5365865, 10731730, 21463460]

約数ペア:

[(1, 21463460), (2, 10731730), (4, 5365865), (5, 4292692), (10, 2146346), (20, 1073173), (61, 351860), (73, 294020), (122, 175930), (146, 147010), (241, 89060), (244, 87965), (292, 73505), (305, 70372), (365, 58804), (482, 44530), (610, 35186), (730, 29402), (964, 22265), (1205, 17812), (1220, 17593), (1460, 14701), (2410, 8906), (4453, 4820)]