18961118

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1$

素因数の和:344

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 13179682

約数列:

[1, 2, 11, 22, 61, 71, 122, 142, 199, 398, 671, 781, 1342, 1562, 2189, 4331, 4378, 8662, 12139, 14129, 24278, 28258, 47641, 95282, 133529, 155419, 267058, 310838, 861869, 1723738, 9480559, 18961118]

約数ペア:

[(1, 18961118), (2, 9480559), (11, 1723738), (22, 861869), (61, 310838), (71, 267058), (122, 155419), (142, 133529), (199, 95282), (398, 47641), (671, 28258), (781, 24278), (1342, 14129), (1562, 12139), (2189, 8662), (4331, 4378)]