21907340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12037}}^1$

素因数の和:12066

約数の個数: 48

約数和(自身を含む): 56626752

約数和(自身を除く): 34719412

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 12037, 24074, 48148, 60185, 84259, 120370, 156481, 168518, 240740, 312962, 337036, 421295, 625924, 782405, 842590, 1095367, 1564810, 1685180, 2190734, 3129620, 4381468, 5476835, 10953670, 21907340]

約数ペア:

[(1, 21907340), (2, 10953670), (4, 5476835), (5, 4381468), (7, 3129620), (10, 2190734), (13, 1685180), (14, 1564810), (20, 1095367), (26, 842590), (28, 782405), (35, 625924), (52, 421295), (65, 337036), (70, 312962), (91, 240740), (130, 168518), (140, 156481), (182, 120370), (260, 84259), (364, 60185), (455, 48148), (910, 24074), (1820, 12037)]