18978708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2237}}^1$

素因数の和:2352

約数の個数: 48

約数和(自身を含む): 51133824

約数和(自身を除く): 32155116

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 101, 202, 303, 404, 606, 707, 1212, 1414, 2121, 2237, 2828, 4242, 4474, 6711, 8484, 8948, 13422, 15659, 26844, 31318, 46977, 62636, 93954, 187908, 225937, 451874, 677811, 903748, 1355622, 1581559, 2711244, 3163118, 4744677, 6326236, 9489354, 18978708]

約数ペア:

[(1, 18978708), (2, 9489354), (3, 6326236), (4, 4744677), (6, 3163118), (7, 2711244), (12, 1581559), (14, 1355622), (21, 903748), (28, 677811), (42, 451874), (84, 225937), (101, 187908), (202, 93954), (303, 62636), (404, 46977), (606, 31318), (707, 26844), (1212, 15659), (1414, 13422), (2121, 8948), (2237, 8484), (2828, 6711), (4242, 4474)]