21576496812

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{880961}}^1$

素因数の和:881138

約数の個数: 48

約数和(自身を含む): 54563262432

約数和(自身を除く): 32986765620

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 942, 1884, 2041, 4082, 6123, 8164, 12246, 24492, 880961, 1761922, 2642883, 3523844, 5285766, 10571532, 11452493, 22904986, 34357479, 45809972, 68714958, 137429916, 138310877, 276621754, 414932631, 553243508, 829865262, 1659730524, 1798041401, 3596082802, 5394124203, 7192165604, 10788248406, 21576496812]

約数ペア:

[(1, 21576496812), (2, 10788248406), (3, 7192165604), (4, 5394124203), (6, 3596082802), (12, 1798041401), (13, 1659730524), (26, 829865262), (39, 553243508), (52, 414932631), (78, 276621754), (156, 138310877), (157, 137429916), (314, 68714958), (471, 45809972), (628, 34357479), (942, 22904986), (1884, 11452493), (2041, 10571532), (4082, 5285766), (6123, 3523844), (8164, 2642883), (12246, 1761922), (24492, 880961)]