21253472

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 44416512

約数和(自身を除く): 23163040

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 67, 92, 134, 184, 268, 368, 431, 536, 736, 862, 1072, 1541, 1724, 2144, 3082, 3448, 6164, 6896, 9913, 12328, 13792, 19826, 24656, 28877, 39652, 49312, 57754, 79304, 115508, 158608, 231016, 317216, 462032, 664171, 924064, 1328342, 2656684, 5313368, 10626736, 21253472]

約数ペア:

[(1, 21253472), (2, 10626736), (4, 5313368), (8, 2656684), (16, 1328342), (23, 924064), (32, 664171), (46, 462032), (67, 317216), (92, 231016), (134, 158608), (184, 115508), (268, 79304), (368, 57754), (431, 49312), (536, 39652), (736, 28877), (862, 24656), (1072, 19826), (1541, 13792), (1724, 12328), (2144, 9913), (3082, 6896), (3448, 6164)]