20664304

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{241}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 42131232

約数和(自身を除く): 21466928

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 233, 241, 368, 466, 482, 932, 964, 1864, 1928, 3728, 3856, 5359, 5543, 10718, 11086, 21436, 22172, 42872, 44344, 56153, 85744, 88688, 112306, 224612, 449224, 898448, 1291519, 2583038, 5166076, 10332152, 20664304]

約数ペア:

[(1, 20664304), (2, 10332152), (4, 5166076), (8, 2583038), (16, 1291519), (23, 898448), (46, 449224), (92, 224612), (184, 112306), (233, 88688), (241, 85744), (368, 56153), (466, 44344), (482, 42872), (932, 22172), (964, 21436), (1864, 11086), (1928, 10718), (3728, 5543), (3856, 5359)]