21389454

素因数分解:

$2^1\times 3^3\times {\mathrm{41}}^1\times {\mathrm{9661}}^1$

素因数の和:9713

約数の個数: 32

約数和(自身を含む): 48696480

約数和(自身を除く): 27307026

約数列:

[1, 2, 3, 6, 9, 18, 27, 41, 54, 82, 123, 246, 369, 738, 1107, 2214, 9661, 19322, 28983, 57966, 86949, 173898, 260847, 396101, 521694, 792202, 1188303, 2376606, 3564909, 7129818, 10694727, 21389454]

約数ペア:

[(1, 21389454), (2, 10694727), (3, 7129818), (6, 3564909), (9, 2376606), (18, 1188303), (27, 792202), (41, 521694), (54, 396101), (82, 260847), (123, 173898), (246, 86949), (369, 57966), (738, 28983), (1107, 19322), (2214, 9661)]