17984278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:520

約数の個数: 32

約数和(自身を含む): 30627072

約数和(自身を除く): 12642794

約数列:

[1, 2, 13, 26, 31, 53, 62, 106, 403, 421, 689, 806, 842, 1378, 1643, 3286, 5473, 10946, 13051, 21359, 22313, 26102, 42718, 44626, 169663, 290069, 339326, 580138, 691703, 1383406, 8992139, 17984278]

約数ペア:

[(1, 17984278), (2, 8992139), (13, 1383406), (26, 691703), (31, 580138), (53, 339326), (62, 290069), (106, 169663), (403, 44626), (421, 42718), (689, 26102), (806, 22313), (842, 21359), (1378, 13051), (1643, 10946), (3286, 5473)]