21507312

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{26357}}^1$

素因数の和:26385

約数の個数: 40

約数和(自身を含む): 58831056

約数和(自身を除く): 37323744

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 102, 136, 204, 272, 408, 816, 26357, 52714, 79071, 105428, 158142, 210856, 316284, 421712, 448069, 632568, 896138, 1265136, 1344207, 1792276, 2688414, 3584552, 5376828, 7169104, 10753656, 21507312]

約数ペア:

[(1, 21507312), (2, 10753656), (3, 7169104), (4, 5376828), (6, 3584552), (8, 2688414), (12, 1792276), (16, 1344207), (17, 1265136), (24, 896138), (34, 632568), (48, 448069), (51, 421712), (68, 316284), (102, 210856), (136, 158142), (204, 105428), (272, 79071), (408, 52714), (816, 26357)]