18718965

素因数分解:

$3^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{443}}^1$

素因数の和:770

約数の個数: 32

約数和(自身を含む): 33459840

約数和(自身を除く): 14740875

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 313, 443, 939, 1329, 1565, 2215, 2817, 3987, 4695, 6645, 8451, 11961, 14085, 19935, 42255, 59805, 138659, 415977, 693295, 1247931, 2079885, 3743793, 6239655, 18718965]

約数ペア:

[(1, 18718965), (3, 6239655), (5, 3743793), (9, 2079885), (15, 1247931), (27, 693295), (45, 415977), (135, 138659), (313, 59805), (443, 42255), (939, 19935), (1329, 14085), (1565, 11961), (2215, 8451), (2817, 6645), (3987, 4695)]