21000866816

素因数分解:

$2^{10}\times {\mathrm{373}}^1\times {\mathrm{54983}}^1$

素因数の和:55376

約数の個数: 44

約数和(自身を含む): 42094540752

約数和(自身を除く): 21093673936

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 373, 512, 746, 1024, 1492, 2984, 5968, 11936, 23872, 47744, 54983, 95488, 109966, 190976, 219932, 381952, 439864, 879728, 1759456, 3518912, 7037824, 14075648, 20508659, 28151296, 41017318, 56302592, 82034636, 164069272, 328138544, 656277088, 1312554176, 2625108352, 5250216704, 10500433408, 21000866816]

約数ペア:

[(1, 21000866816), (2, 10500433408), (4, 5250216704), (8, 2625108352), (16, 1312554176), (32, 656277088), (64, 328138544), (128, 164069272), (256, 82034636), (373, 56302592), (512, 41017318), (746, 28151296), (1024, 20508659), (1492, 14075648), (2984, 7037824), (5968, 3518912), (11936, 1759456), (23872, 879728), (47744, 439864), (54983, 381952), (95488, 219932), (109966, 190976)]