21641906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2441}}^1$

素因数の和:2498

約数の個数: 32

約数和(自身を含む): 39384576

約数和(自身を除く): 17742670

約数列:

[1, 2, 11, 13, 22, 26, 31, 62, 143, 286, 341, 403, 682, 806, 2441, 4433, 4882, 8866, 26851, 31733, 53702, 63466, 75671, 151342, 349063, 698126, 832381, 983723, 1664762, 1967446, 10820953, 21641906]

約数ペア:

[(1, 21641906), (2, 10820953), (11, 1967446), (13, 1664762), (22, 983723), (26, 832381), (31, 698126), (62, 349063), (143, 151342), (286, 75671), (341, 63466), (403, 53702), (682, 31733), (806, 26851), (2441, 8866), (4433, 4882)]