216990228

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{28387}}^1$

素因数の和:28421

約数の個数: 72

約数和(自身を含む): 634301472

約数和(自身を除く): 417311244

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 49, 52, 78, 84, 91, 98, 147, 156, 182, 196, 273, 294, 364, 546, 588, 637, 1092, 1274, 1911, 2548, 3822, 7644, 28387, 56774, 85161, 113548, 170322, 198709, 340644, 369031, 397418, 596127, 738062, 794836, 1107093, 1192254, 1390963, 1476124, 2214186, 2384508, 2583217, 2781926, 4172889, 4428372, 5166434, 5563852, 7749651, 8345778, 10332868, 15499302, 16691556, 18082519, 30998604, 36165038, 54247557, 72330076, 108495114, 216990228]

約数ペア:

[(1, 216990228), (2, 108495114), (3, 72330076), (4, 54247557), (6, 36165038), (7, 30998604), (12, 18082519), (13, 16691556), (14, 15499302), (21, 10332868), (26, 8345778), (28, 7749651), (39, 5563852), (42, 5166434), (49, 4428372), (52, 4172889), (78, 2781926), (84, 2583217), (91, 2384508), (98, 2214186), (147, 1476124), (156, 1390963), (182, 1192254), (196, 1107093), (273, 794836), (294, 738062), (364, 596127), (546, 397418), (588, 369031), (637, 340644), (1092, 198709), (1274, 170322), (1911, 113548), (2548, 85161), (3822, 56774), (7644, 28387)]