18974655

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 41094144

約数和(自身を除く): 22119489

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 27, 35, 45, 63, 69, 81, 97, 105, 115, 135, 161, 189, 207, 243, 291, 315, 345, 405, 483, 485, 567, 621, 679, 805, 873, 945, 1035, 1215, 1449, 1455, 1701, 1863, 2037, 2231, 2415, 2619, 2835, 3105, 3395, 4347, 4365, 5589, 6111, 6693, 7245, 7857, 8505, 9315, 10185, 11155, 13041, 13095, 15617, 18333, 20079, 21735, 23571, 27945, 30555, 33465, 39123, 39285, 46851, 54999, 60237, 65205, 78085, 91665, 100395, 117855, 140553, 164997, 180711, 195615, 234255, 274995, 301185, 421659, 542133, 702765, 824985, 903555, 1264977, 2108295, 2710665, 3794931, 6324885, 18974655]

約数ペア:

[(1, 18974655), (3, 6324885), (5, 3794931), (7, 2710665), (9, 2108295), (15, 1264977), (21, 903555), (23, 824985), (27, 702765), (35, 542133), (45, 421659), (63, 301185), (69, 274995), (81, 234255), (97, 195615), (105, 180711), (115, 164997), (135, 140553), (161, 117855), (189, 100395), (207, 91665), (243, 78085), (291, 65205), (315, 60237), (345, 54999), (405, 46851), (483, 39285), (485, 39123), (567, 33465), (621, 30555), (679, 27945), (805, 23571), (873, 21735), (945, 20079), (1035, 18333), (1215, 15617), (1449, 13095), (1455, 13041), (1701, 11155), (1863, 10185), (2037, 9315), (2231, 8505), (2415, 7857), (2619, 7245), (2835, 6693), (3105, 6111), (3395, 5589), (4347, 4365)]