21360590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{983}}^1$

素因数の和:1084

約数の個数: 32

約数和(自身を含む): 40170816

約数和(自身を除く): 18810226

約数列:

[1, 2, 5, 10, 41, 53, 82, 106, 205, 265, 410, 530, 983, 1966, 2173, 4346, 4915, 9830, 10865, 21730, 40303, 52099, 80606, 104198, 201515, 260495, 403030, 520990, 2136059, 4272118, 10680295, 21360590]

約数ペア:

[(1, 21360590), (2, 10680295), (5, 4272118), (10, 2136059), (41, 520990), (53, 403030), (82, 260495), (106, 201515), (205, 104198), (265, 80606), (410, 52099), (530, 40303), (983, 21730), (1966, 10865), (2173, 9830), (4346, 4915)]