21393528

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{359}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 36667272

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 191, 312, 359, 382, 573, 718, 764, 1077, 1146, 1436, 1528, 2154, 2292, 2483, 2872, 4308, 4584, 4667, 4966, 7449, 8616, 9334, 9932, 14001, 14898, 18668, 19864, 28002, 29796, 37336, 56004, 59592, 68569, 112008, 137138, 205707, 274276, 411414, 548552, 822828, 891397, 1645656, 1782794, 2674191, 3565588, 5348382, 7131176, 10696764, 21393528]

約数ペア:

[(1, 21393528), (2, 10696764), (3, 7131176), (4, 5348382), (6, 3565588), (8, 2674191), (12, 1782794), (13, 1645656), (24, 891397), (26, 822828), (39, 548552), (52, 411414), (78, 274276), (104, 205707), (156, 137138), (191, 112008), (312, 68569), (359, 59592), (382, 56004), (573, 37336), (718, 29796), (764, 28002), (1077, 19864), (1146, 18668), (1436, 14898), (1528, 14001), (2154, 9932), (2292, 9334), (2483, 8616), (2872, 7449), (4308, 4966), (4584, 4667)]