20187868974

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{406309}}^1$

素因数の和:406354

約数の個数: 72

約数和(自身を含む): 50858635320

約数和(自身を除く): 30670766346

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 169, 182, 273, 294, 338, 507, 546, 637, 1014, 1183, 1274, 1911, 2366, 3549, 3822, 7098, 8281, 16562, 24843, 49686, 406309, 812618, 1218927, 2437854, 2844163, 5282017, 5688326, 8532489, 10564034, 15846051, 17064978, 19909141, 31692102, 36974119, 39818282, 59727423, 68666221, 73948238, 110922357, 119454846, 137332442, 205998663, 221844714, 258818833, 411997326, 480663547, 517637666, 776456499, 961327094, 1441990641, 1552912998, 2883981282, 3364644829, 6729289658, 10093934487, 20187868974]

約数ペア:

[(1, 20187868974), (2, 10093934487), (3, 6729289658), (6, 3364644829), (7, 2883981282), (13, 1552912998), (14, 1441990641), (21, 961327094), (26, 776456499), (39, 517637666), (42, 480663547), (49, 411997326), (78, 258818833), (91, 221844714), (98, 205998663), (147, 137332442), (169, 119454846), (182, 110922357), (273, 73948238), (294, 68666221), (338, 59727423), (507, 39818282), (546, 36974119), (637, 31692102), (1014, 19909141), (1183, 17064978), (1274, 15846051), (1911, 10564034), (2366, 8532489), (3549, 5688326), (3822, 5282017), (7098, 2844163), (8281, 2437854), (16562, 1218927), (24843, 812618), (49686, 406309)]