21248536

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3251}}^1$

素因数の和:3319

約数の個数: 32

約数和(自身を含む): 42926400

約数和(自身を除く): 21677864

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 172, 344, 817, 1634, 3251, 3268, 6502, 6536, 13004, 26008, 61769, 123538, 139793, 247076, 279586, 494152, 559172, 1118344, 2656067, 5312134, 10624268, 21248536]

約数ペア:

[(1, 21248536), (2, 10624268), (4, 5312134), (8, 2656067), (19, 1118344), (38, 559172), (43, 494152), (76, 279586), (86, 247076), (152, 139793), (172, 123538), (344, 61769), (817, 26008), (1634, 13004), (3251, 6536), (3268, 6502)]