21867560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3823}}^1$

素因数の和:3858

約数の個数: 64

約数和(自身を含む): 57818880

約数和(自身を除く): 35951320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3823, 5720, 7646, 15292, 19115, 30584, 38230, 42053, 49699, 76460, 84106, 99398, 152920, 168212, 198796, 210265, 248495, 336424, 397592, 420530, 496990, 546689, 841060, 993980, 1093378, 1682120, 1987960, 2186756, 2733445, 4373512, 5466890, 10933780, 21867560]

約数ペア:

[(1, 21867560), (2, 10933780), (4, 5466890), (5, 4373512), (8, 2733445), (10, 2186756), (11, 1987960), (13, 1682120), (20, 1093378), (22, 993980), (26, 841060), (40, 546689), (44, 496990), (52, 420530), (55, 397592), (65, 336424), (88, 248495), (104, 210265), (110, 198796), (130, 168212), (143, 152920), (220, 99398), (260, 84106), (286, 76460), (440, 49699), (520, 42053), (572, 38230), (715, 30584), (1144, 19115), (1430, 15292), (2860, 7646), (3823, 5720)]