18056745

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 38413440

約数和(自身を除く): 20356695

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 49, 57, 63, 95, 105, 133, 147, 171, 245, 285, 315, 399, 431, 441, 665, 735, 855, 931, 1197, 1293, 1995, 2155, 2205, 2793, 3017, 3879, 4655, 5985, 6465, 8189, 8379, 9051, 13965, 15085, 19395, 21119, 24567, 27153, 40945, 41895, 45255, 57323, 63357, 73701, 105595, 122835, 135765, 171969, 190071, 286615, 316785, 368505, 401261, 515907, 859845, 950355, 1203783, 2006305, 2579535, 3611349, 6018915, 18056745]

約数ペア:

[(1, 18056745), (3, 6018915), (5, 3611349), (7, 2579535), (9, 2006305), (15, 1203783), (19, 950355), (21, 859845), (35, 515907), (45, 401261), (49, 368505), (57, 316785), (63, 286615), (95, 190071), (105, 171969), (133, 135765), (147, 122835), (171, 105595), (245, 73701), (285, 63357), (315, 57323), (399, 45255), (431, 41895), (441, 40945), (665, 27153), (735, 24567), (855, 21119), (931, 19395), (1197, 15085), (1293, 13965), (1995, 9051), (2155, 8379), (2205, 8189), (2793, 6465), (3017, 5985), (3879, 4655)]