21196432

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:511

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 22015088

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 239, 241, 368, 478, 482, 956, 964, 1912, 1928, 3824, 3856, 5497, 5543, 10994, 11086, 21988, 22172, 43976, 44344, 57599, 87952, 88688, 115198, 230396, 460792, 921584, 1324777, 2649554, 5299108, 10598216, 21196432]

約数ペア:

[(1, 21196432), (2, 10598216), (4, 5299108), (8, 2649554), (16, 1324777), (23, 921584), (46, 460792), (92, 230396), (184, 115198), (239, 88688), (241, 87952), (368, 57599), (478, 44344), (482, 43976), (956, 22172), (964, 21988), (1912, 11086), (1928, 10994), (3824, 5543), (3856, 5497)]