20821728

素因数分解:

$2^5\times 3^1\times {\mathrm{89}}^1\times {\mathrm{2437}}^1$

素因数の和:2539

約数の個数: 48

約数和(自身を含む): 55293840

約数和(自身を除く): 34472112

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 89, 96, 178, 267, 356, 534, 712, 1068, 1424, 2136, 2437, 2848, 4272, 4874, 7311, 8544, 9748, 14622, 19496, 29244, 38992, 58488, 77984, 116976, 216893, 233952, 433786, 650679, 867572, 1301358, 1735144, 2602716, 3470288, 5205432, 6940576, 10410864, 20821728]

約数ペア:

[(1, 20821728), (2, 10410864), (3, 6940576), (4, 5205432), (6, 3470288), (8, 2602716), (12, 1735144), (16, 1301358), (24, 867572), (32, 650679), (48, 433786), (89, 233952), (96, 216893), (178, 116976), (267, 77984), (356, 58488), (534, 38992), (712, 29244), (1068, 19496), (1424, 14622), (2136, 9748), (2437, 8544), (2848, 7311), (4272, 4874)]