21234672

素因数分解:

$2^4\times 3^2\times {\mathrm{239}}^1\times {\mathrm{617}}^1$

素因数の和:870

約数の個数: 60

約数和(自身を含む): 59772960

約数和(自身を除く): 38538288

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 239, 478, 617, 717, 956, 1234, 1434, 1851, 1912, 2151, 2468, 2868, 3702, 3824, 4302, 4936, 5553, 5736, 7404, 8604, 9872, 11106, 11472, 14808, 17208, 22212, 29616, 34416, 44424, 88848, 147463, 294926, 442389, 589852, 884778, 1179704, 1327167, 1769556, 2359408, 2654334, 3539112, 5308668, 7078224, 10617336, 21234672]

約数ペア:

[(1, 21234672), (2, 10617336), (3, 7078224), (4, 5308668), (6, 3539112), (8, 2654334), (9, 2359408), (12, 1769556), (16, 1327167), (18, 1179704), (24, 884778), (36, 589852), (48, 442389), (72, 294926), (144, 147463), (239, 88848), (478, 44424), (617, 34416), (717, 29616), (956, 22212), (1234, 17208), (1434, 14808), (1851, 11472), (1912, 11106), (2151, 9872), (2468, 8604), (2868, 7404), (3702, 5736), (3824, 5553), (4302, 4936)]