21279984

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{983}}^1$

素因数の和:1046

約数の個数: 80

約数和(自身を含む): 61496064

約数和(自身を除く): 40216080

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 41, 44, 48, 66, 82, 88, 123, 132, 164, 176, 246, 264, 328, 451, 492, 528, 656, 902, 983, 984, 1353, 1804, 1966, 1968, 2706, 2949, 3608, 3932, 5412, 5898, 7216, 7864, 10813, 10824, 11796, 15728, 21626, 21648, 23592, 32439, 40303, 43252, 47184, 64878, 80606, 86504, 120909, 129756, 161212, 173008, 241818, 259512, 322424, 443333, 483636, 519024, 644848, 886666, 967272, 1329999, 1773332, 1934544, 2659998, 3546664, 5319996, 7093328, 10639992, 21279984]

約数ペア:

[(1, 21279984), (2, 10639992), (3, 7093328), (4, 5319996), (6, 3546664), (8, 2659998), (11, 1934544), (12, 1773332), (16, 1329999), (22, 967272), (24, 886666), (33, 644848), (41, 519024), (44, 483636), (48, 443333), (66, 322424), (82, 259512), (88, 241818), (123, 173008), (132, 161212), (164, 129756), (176, 120909), (246, 86504), (264, 80606), (328, 64878), (451, 47184), (492, 43252), (528, 40303), (656, 32439), (902, 23592), (983, 21648), (984, 21626), (1353, 15728), (1804, 11796), (1966, 10824), (1968, 10813), (2706, 7864), (2949, 7216), (3608, 5898), (3932, 5412)]