21116004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 96

約数和(自身を含む): 61829376

約数和(自身を除く): 40713372

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 61, 78, 84, 91, 122, 156, 182, 183, 244, 273, 317, 364, 366, 427, 546, 634, 732, 793, 854, 951, 1092, 1268, 1281, 1586, 1708, 1902, 2219, 2379, 2562, 3172, 3804, 4121, 4438, 4758, 5124, 5551, 6657, 8242, 8876, 9516, 11102, 12363, 13314, 16484, 16653, 19337, 22204, 24726, 26628, 28847, 33306, 38674, 49452, 57694, 58011, 66612, 77348, 86541, 115388, 116022, 135359, 173082, 232044, 251381, 270718, 346164, 406077, 502762, 541436, 754143, 812154, 1005524, 1508286, 1624308, 1759667, 3016572, 3519334, 5279001, 7038668, 10558002, 21116004]

約数ペア:

[(1, 21116004), (2, 10558002), (3, 7038668), (4, 5279001), (6, 3519334), (7, 3016572), (12, 1759667), (13, 1624308), (14, 1508286), (21, 1005524), (26, 812154), (28, 754143), (39, 541436), (42, 502762), (52, 406077), (61, 346164), (78, 270718), (84, 251381), (91, 232044), (122, 173082), (156, 135359), (182, 116022), (183, 115388), (244, 86541), (273, 77348), (317, 66612), (364, 58011), (366, 57694), (427, 49452), (546, 38674), (634, 33306), (732, 28847), (793, 26628), (854, 24726), (951, 22204), (1092, 19337), (1268, 16653), (1281, 16484), (1586, 13314), (1708, 12363), (1902, 11102), (2219, 9516), (2379, 8876), (2562, 8242), (3172, 6657), (3804, 5551), (4121, 5124), (4438, 4758)]