21297536

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{12799}}^1$

素因数の和:12826

約数の個数: 32

約数和(自身を含む): 45696000

約数和(自身を除く): 24398464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1664, 12799, 25598, 51196, 102392, 166387, 204784, 332774, 409568, 665548, 819136, 1331096, 1638272, 2662192, 5324384, 10648768, 21297536]

約数ペア:

[(1, 21297536), (2, 10648768), (4, 5324384), (8, 2662192), (13, 1638272), (16, 1331096), (26, 819136), (32, 665548), (52, 409568), (64, 332774), (104, 204784), (128, 166387), (208, 102392), (416, 51196), (832, 25598), (1664, 12799)]