17996895

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 39137280

約数和(自身を除く): 21140385

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 31, 35, 45, 57, 63, 93, 95, 97, 105, 133, 155, 171, 217, 279, 285, 291, 315, 399, 465, 485, 589, 651, 665, 679, 855, 873, 1085, 1197, 1395, 1455, 1767, 1843, 1953, 1995, 2037, 2945, 3007, 3255, 3395, 4123, 4365, 5301, 5529, 5985, 6111, 8835, 9021, 9215, 9765, 10185, 12369, 12901, 15035, 16587, 20615, 21049, 26505, 27063, 27645, 30555, 37107, 38703, 45105, 57133, 61845, 63147, 64505, 82935, 105245, 116109, 135315, 171399, 185535, 189441, 193515, 285665, 315735, 399931, 514197, 580545, 856995, 947205, 1199793, 1999655, 2570985, 3599379, 5998965, 17996895]

約数ペア:

[(1, 17996895), (3, 5998965), (5, 3599379), (7, 2570985), (9, 1999655), (15, 1199793), (19, 947205), (21, 856995), (31, 580545), (35, 514197), (45, 399931), (57, 315735), (63, 285665), (93, 193515), (95, 189441), (97, 185535), (105, 171399), (133, 135315), (155, 116109), (171, 105245), (217, 82935), (279, 64505), (285, 63147), (291, 61845), (315, 57133), (399, 45105), (465, 38703), (485, 37107), (589, 30555), (651, 27645), (665, 27063), (679, 26505), (855, 21049), (873, 20615), (1085, 16587), (1197, 15035), (1395, 12901), (1455, 12369), (1767, 10185), (1843, 9765), (1953, 9215), (1995, 9021), (2037, 8835), (2945, 6111), (3007, 5985), (3255, 5529), (3395, 5301), (4123, 4365)]