21573952

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1$

素因数の和:359

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 24511808

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 79, 136, 158, 251, 272, 316, 502, 544, 632, 1004, 1088, 1264, 1343, 2008, 2528, 2686, 4016, 4267, 5056, 5372, 8032, 8534, 10744, 16064, 17068, 19829, 21488, 34136, 39658, 42976, 68272, 79316, 85952, 136544, 158632, 273088, 317264, 337093, 634528, 674186, 1269056, 1348372, 2696744, 5393488, 10786976, 21573952]

約数ペア:

[(1, 21573952), (2, 10786976), (4, 5393488), (8, 2696744), (16, 1348372), (17, 1269056), (32, 674186), (34, 634528), (64, 337093), (68, 317264), (79, 273088), (136, 158632), (158, 136544), (251, 85952), (272, 79316), (316, 68272), (502, 42976), (544, 39658), (632, 34136), (1004, 21488), (1088, 19829), (1264, 17068), (1343, 16064), (2008, 10744), (2528, 8534), (2686, 8032), (4016, 5372), (4267, 5056)]