18380043

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 31314816

約数和(自身を除く): 12934773

約数列:

[1, 3, 9, 11, 17, 33, 51, 67, 99, 153, 163, 187, 201, 489, 561, 603, 737, 1139, 1467, 1683, 1793, 2211, 2771, 3417, 5379, 6633, 8313, 10251, 10921, 12529, 16137, 24939, 30481, 32763, 37587, 91443, 98289, 112761, 120131, 185657, 274329, 360393, 556971, 1081179, 1670913, 2042227, 6126681, 18380043]

約数ペア:

[(1, 18380043), (3, 6126681), (9, 2042227), (11, 1670913), (17, 1081179), (33, 556971), (51, 360393), (67, 274329), (99, 185657), (153, 120131), (163, 112761), (187, 98289), (201, 91443), (489, 37587), (561, 32763), (603, 30481), (737, 24939), (1139, 16137), (1467, 12529), (1683, 10921), (1793, 10251), (2211, 8313), (2771, 6633), (3417, 5379)]