20471886

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 28050354

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 53, 54, 69, 106, 138, 159, 207, 311, 318, 414, 477, 621, 622, 933, 954, 1219, 1242, 1431, 1866, 2438, 2799, 2862, 3657, 5598, 7153, 7314, 8397, 10971, 14306, 16483, 16794, 21459, 21942, 32913, 32966, 42918, 49449, 64377, 65826, 98898, 128754, 148347, 193131, 296694, 379109, 386262, 445041, 758218, 890082, 1137327, 2274654, 3411981, 6823962, 10235943, 20471886]

約数ペア:

[(1, 20471886), (2, 10235943), (3, 6823962), (6, 3411981), (9, 2274654), (18, 1137327), (23, 890082), (27, 758218), (46, 445041), (53, 386262), (54, 379109), (69, 296694), (106, 193131), (138, 148347), (159, 128754), (207, 98898), (311, 65826), (318, 64377), (414, 49449), (477, 42918), (621, 32966), (622, 32913), (933, 21942), (954, 21459), (1219, 16794), (1242, 16483), (1431, 14306), (1866, 10971), (2438, 8397), (2799, 7314), (2862, 7153), (3657, 5598)]