18181845

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1597}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 35897472

約数和(自身を除く): 17715627

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 165, 207, 253, 345, 495, 759, 1035, 1265, 1597, 2277, 3795, 4791, 7985, 11385, 14373, 17567, 23955, 36731, 52701, 71865, 87835, 110193, 158103, 183655, 263505, 330579, 404041, 550965, 790515, 1212123, 1652895, 2020205, 3636369, 6060615, 18181845]

約数ペア:

[(1, 18181845), (3, 6060615), (5, 3636369), (9, 2020205), (11, 1652895), (15, 1212123), (23, 790515), (33, 550965), (45, 404041), (55, 330579), (69, 263505), (99, 183655), (115, 158103), (165, 110193), (207, 87835), (253, 71865), (345, 52701), (495, 36731), (759, 23955), (1035, 17567), (1265, 14373), (1597, 11385), (2277, 7985), (3795, 4791)]