21073312

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{283}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 45087840

約数和(自身を除く): 24014528

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 179, 208, 283, 358, 416, 566, 716, 1132, 1432, 2264, 2327, 2864, 3679, 4528, 4654, 5728, 7358, 9056, 9308, 14716, 18616, 29432, 37232, 50657, 58864, 74464, 101314, 117728, 202628, 405256, 658541, 810512, 1317082, 1621024, 2634164, 5268328, 10536656, 21073312]

約数ペア:

[(1, 21073312), (2, 10536656), (4, 5268328), (8, 2634164), (13, 1621024), (16, 1317082), (26, 810512), (32, 658541), (52, 405256), (104, 202628), (179, 117728), (208, 101314), (283, 74464), (358, 58864), (416, 50657), (566, 37232), (716, 29432), (1132, 18616), (1432, 14716), (2264, 9308), (2327, 9056), (2864, 7358), (3679, 5728), (4528, 4654)]