18406648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 40824000

約数和(自身を除く): 22417352

約数列:

[1, 2, 4, 8, 13, 17, 26, 29, 34, 52, 58, 68, 104, 116, 136, 221, 232, 359, 377, 442, 493, 718, 754, 884, 986, 1436, 1508, 1768, 1972, 2872, 3016, 3944, 4667, 6103, 6409, 9334, 10411, 12206, 12818, 18668, 20822, 24412, 25636, 37336, 41644, 48824, 51272, 79339, 83288, 135343, 158678, 176987, 270686, 317356, 353974, 541372, 634712, 707948, 1082744, 1415896, 2300831, 4601662, 9203324, 18406648]

約数ペア:

[(1, 18406648), (2, 9203324), (4, 4601662), (8, 2300831), (13, 1415896), (17, 1082744), (26, 707948), (29, 634712), (34, 541372), (52, 353974), (58, 317356), (68, 270686), (104, 176987), (116, 158678), (136, 135343), (221, 83288), (232, 79339), (359, 51272), (377, 48824), (442, 41644), (493, 37336), (718, 25636), (754, 24412), (884, 20822), (986, 18668), (1436, 12818), (1508, 12206), (1768, 10411), (1972, 9334), (2872, 6409), (3016, 6103), (3944, 4667)]