19751056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{353}}^1$

素因数の和:643

約数の個数: 40

約数和(自身を含む): 41481720

約数和(自身を除く): 21730664

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 269, 353, 538, 706, 1076, 1412, 2152, 2824, 3497, 4304, 4589, 5648, 6994, 9178, 13988, 18356, 27976, 36712, 55952, 73424, 94957, 189914, 379828, 759656, 1234441, 1519312, 2468882, 4937764, 9875528, 19751056]

約数ペア:

[(1, 19751056), (2, 9875528), (4, 4937764), (8, 2468882), (13, 1519312), (16, 1234441), (26, 759656), (52, 379828), (104, 189914), (208, 94957), (269, 73424), (353, 55952), (538, 36712), (706, 27976), (1076, 18356), (1412, 13988), (2152, 9178), (2824, 6994), (3497, 5648), (4304, 4589)]