21421218

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{39233}}^1$

素因数の和:39258

約数の個数: 32

約数和(自身を含む): 52730496

約数和(自身を除く): 31309278

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 273, 546, 39233, 78466, 117699, 235398, 274631, 510029, 549262, 823893, 1020058, 1530087, 1647786, 3060174, 3570203, 7140406, 10710609, 21421218]

約数ペア:

[(1, 21421218), (2, 10710609), (3, 7140406), (6, 3570203), (7, 3060174), (13, 1647786), (14, 1530087), (21, 1020058), (26, 823893), (39, 549262), (42, 510029), (78, 274631), (91, 235398), (182, 117699), (273, 78466), (546, 39233)]