21903512

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1553}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 43076880

約数和(自身を除く): 21173368

約数列:

[1, 2, 4, 8, 41, 43, 82, 86, 164, 172, 328, 344, 1553, 1763, 3106, 3526, 6212, 7052, 12424, 14104, 63673, 66779, 127346, 133558, 254692, 267116, 509384, 534232, 2737939, 5475878, 10951756, 21903512]

約数ペア:

[(1, 21903512), (2, 10951756), (4, 5475878), (8, 2737939), (41, 534232), (43, 509384), (82, 267116), (86, 254692), (164, 133558), (172, 127346), (328, 66779), (344, 63673), (1553, 14104), (1763, 12424), (3106, 7052), (3526, 6212)]