18181218

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 40602240

約数和(自身を除く): 22421022

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 79, 121, 158, 237, 242, 317, 363, 474, 634, 726, 869, 951, 1738, 1902, 2607, 3487, 5214, 6974, 9559, 10461, 19118, 20922, 25043, 28677, 38357, 50086, 57354, 75129, 76714, 115071, 150258, 230142, 275473, 550946, 826419, 1652838, 3030203, 6060406, 9090609, 18181218]

約数ペア:

[(1, 18181218), (2, 9090609), (3, 6060406), (6, 3030203), (11, 1652838), (22, 826419), (33, 550946), (66, 275473), (79, 230142), (121, 150258), (158, 115071), (237, 76714), (242, 75129), (317, 57354), (363, 50086), (474, 38357), (634, 28677), (726, 25043), (869, 20922), (951, 19118), (1738, 10461), (1902, 9559), (2607, 6974), (3487, 5214)]