21157236

素因数分解:

$2^2\times 3^2\times {\mathrm{239}}^1\times {\mathrm{2459}}^1$

素因数の和:2708

約数の個数: 36

約数和(自身を含む): 53726400

約数和(自身を除く): 32569164

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 239, 478, 717, 956, 1434, 2151, 2459, 2868, 4302, 4918, 7377, 8604, 9836, 14754, 22131, 29508, 44262, 88524, 587701, 1175402, 1763103, 2350804, 3526206, 5289309, 7052412, 10578618, 21157236]

約数ペア:

[(1, 21157236), (2, 10578618), (3, 7052412), (4, 5289309), (6, 3526206), (9, 2350804), (12, 1763103), (18, 1175402), (36, 587701), (239, 88524), (478, 44262), (717, 29508), (956, 22131), (1434, 14754), (2151, 9836), (2459, 8604), (2868, 7377), (4302, 4918)]