18699135

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 96

約数和(自身を含む): 39836160

約数和(自身を除く): 21137025

約数列:

[1, 3, 5, 7, 13, 15, 19, 21, 35, 39, 49, 57, 65, 91, 95, 103, 105, 133, 147, 195, 245, 247, 273, 285, 309, 399, 455, 515, 637, 665, 721, 735, 741, 931, 1235, 1339, 1365, 1545, 1729, 1911, 1957, 1995, 2163, 2793, 3185, 3605, 3705, 4017, 4655, 5047, 5187, 5871, 6695, 8645, 9373, 9555, 9785, 10815, 12103, 13699, 13965, 15141, 20085, 25235, 25441, 25935, 28119, 29355, 36309, 41097, 46865, 60515, 65611, 68495, 75705, 76323, 95893, 127205, 140595, 178087, 181545, 196833, 205485, 287679, 328055, 381615, 479465, 534261, 890435, 984165, 1246609, 1438395, 2671305, 3739827, 6233045, 18699135]

約数ペア:

[(1, 18699135), (3, 6233045), (5, 3739827), (7, 2671305), (13, 1438395), (15, 1246609), (19, 984165), (21, 890435), (35, 534261), (39, 479465), (49, 381615), (57, 328055), (65, 287679), (91, 205485), (95, 196833), (103, 181545), (105, 178087), (133, 140595), (147, 127205), (195, 95893), (245, 76323), (247, 75705), (273, 68495), (285, 65611), (309, 60515), (399, 46865), (455, 41097), (515, 36309), (637, 29355), (665, 28119), (721, 25935), (735, 25441), (741, 25235), (931, 20085), (1235, 15141), (1339, 13965), (1365, 13699), (1545, 12103), (1729, 10815), (1911, 9785), (1957, 9555), (1995, 9373), (2163, 8645), (2793, 6695), (3185, 5871), (3605, 5187), (3705, 5047), (4017, 4655)]