21354336

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{1399}}^1$

素因数の和:1468

約数の個数: 72

約数和(自身を含む): 61916400

約数和(自身を除く): 40562064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1272, 1399, 1696, 1908, 2544, 2798, 3816, 4197, 5088, 5596, 7632, 8394, 11192, 12591, 15264, 16788, 22384, 25182, 33576, 44768, 50364, 67152, 74147, 100728, 134304, 148294, 201456, 222441, 296588, 402912, 444882, 593176, 667323, 889764, 1186352, 1334646, 1779528, 2372704, 2669292, 3559056, 5338584, 7118112, 10677168, 21354336]

約数ペア:

[(1, 21354336), (2, 10677168), (3, 7118112), (4, 5338584), (6, 3559056), (8, 2669292), (9, 2372704), (12, 1779528), (16, 1334646), (18, 1186352), (24, 889764), (32, 667323), (36, 593176), (48, 444882), (53, 402912), (72, 296588), (96, 222441), (106, 201456), (144, 148294), (159, 134304), (212, 100728), (288, 74147), (318, 67152), (424, 50364), (477, 44768), (636, 33576), (848, 25182), (954, 22384), (1272, 16788), (1399, 15264), (1696, 12591), (1908, 11192), (2544, 8394), (2798, 7632), (3816, 5596), (4197, 5088)]