201820311

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 396085248

約数和(自身を除く): 194264937

約数列:

[1, 3, 7, 9, 11, 17, 21, 33, 37, 51, 63, 77, 99, 111, 119, 153, 187, 231, 259, 333, 357, 407, 463, 561, 629, 693, 777, 1071, 1221, 1309, 1389, 1683, 1887, 2331, 2849, 3241, 3663, 3927, 4167, 4403, 5093, 5661, 6919, 7871, 8547, 9723, 11781, 13209, 15279, 17131, 20757, 23613, 25641, 29169, 35651, 39627, 45837, 48433, 51393, 55097, 62271, 70839, 86581, 106953, 119917, 145299, 154179, 165291, 188441, 259743, 291227, 320859, 359751, 435897, 495873, 565323, 606067, 779229, 873681, 1079253, 1319087, 1695969, 1818201, 2038589, 2621043, 3203497, 3957261, 5454603, 6115767, 9610491, 11871783, 18347301, 22424479, 28831473, 67273437, 201820311]

約数ペア:

[(1, 201820311), (3, 67273437), (7, 28831473), (9, 22424479), (11, 18347301), (17, 11871783), (21, 9610491), (33, 6115767), (37, 5454603), (51, 3957261), (63, 3203497), (77, 2621043), (99, 2038589), (111, 1818201), (119, 1695969), (153, 1319087), (187, 1079253), (231, 873681), (259, 779229), (333, 606067), (357, 565323), (407, 495873), (463, 435897), (561, 359751), (629, 320859), (693, 291227), (777, 259743), (1071, 188441), (1221, 165291), (1309, 154179), (1389, 145299), (1683, 119917), (1887, 106953), (2331, 86581), (2849, 70839), (3241, 62271), (3663, 55097), (3927, 51393), (4167, 48433), (4403, 45837), (5093, 39627), (5661, 35651), (6919, 29169), (7871, 25641), (8547, 23613), (9723, 20757), (11781, 17131), (13209, 15279)]