21754278

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 128

約数和(自身を含む): 62899200

約数和(自身を除く): 41144922

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 27, 38, 39, 42, 54, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 189, 233, 234, 247, 266, 273, 342, 351, 378, 399, 466, 494, 513, 546, 699, 702, 741, 798, 819, 1026, 1197, 1398, 1482, 1631, 1638, 1729, 2097, 2223, 2394, 2457, 3029, 3262, 3458, 3591, 4194, 4427, 4446, 4893, 4914, 5187, 6058, 6291, 6669, 7182, 8854, 9087, 9786, 10374, 12582, 13281, 13338, 14679, 15561, 18174, 21203, 26562, 27261, 29358, 30989, 31122, 39843, 42406, 44037, 46683, 54522, 57551, 61978, 63609, 79686, 81783, 88074, 92967, 93366, 115102, 119529, 127218, 163566, 172653, 185934, 190827, 239058, 278901, 345306, 381654, 402857, 517959, 557802, 572481, 805714, 836703, 1035918, 1144962, 1208571, 1553877, 1673406, 2417142, 3107754, 3625713, 7251426, 10877139, 21754278]

約数ペア:

[(1, 21754278), (2, 10877139), (3, 7251426), (6, 3625713), (7, 3107754), (9, 2417142), (13, 1673406), (14, 1553877), (18, 1208571), (19, 1144962), (21, 1035918), (26, 836703), (27, 805714), (38, 572481), (39, 557802), (42, 517959), (54, 402857), (57, 381654), (63, 345306), (78, 278901), (91, 239058), (114, 190827), (117, 185934), (126, 172653), (133, 163566), (171, 127218), (182, 119529), (189, 115102), (233, 93366), (234, 92967), (247, 88074), (266, 81783), (273, 79686), (342, 63609), (351, 61978), (378, 57551), (399, 54522), (466, 46683), (494, 44037), (513, 42406), (546, 39843), (699, 31122), (702, 30989), (741, 29358), (798, 27261), (819, 26562), (1026, 21203), (1197, 18174), (1398, 15561), (1482, 14679), (1631, 13338), (1638, 13281), (1729, 12582), (2097, 10374), (2223, 9786), (2394, 9087), (2457, 8854), (3029, 7182), (3262, 6669), (3458, 6291), (3591, 6058), (4194, 5187), (4427, 4914), (4446, 4893)]