18921834

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{907}}^1$

素因数の和:995

約数の個数: 48

約数和(自身を含む): 43910880

約数和(自身を除く): 24989046

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 61, 114, 122, 171, 183, 342, 366, 549, 907, 1098, 1159, 1814, 2318, 2721, 3477, 5442, 6954, 8163, 10431, 16326, 17233, 20862, 34466, 51699, 55327, 103398, 110654, 155097, 165981, 310194, 331962, 497943, 995886, 1051213, 2102426, 3153639, 6307278, 9460917, 18921834]

約数ペア:

[(1, 18921834), (2, 9460917), (3, 6307278), (6, 3153639), (9, 2102426), (18, 1051213), (19, 995886), (38, 497943), (57, 331962), (61, 310194), (114, 165981), (122, 155097), (171, 110654), (183, 103398), (342, 55327), (366, 51699), (549, 34466), (907, 20862), (1098, 17233), (1159, 16326), (1814, 10431), (2318, 8163), (2721, 6954), (3477, 5442)]