21438924

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2593}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 54909792

約数和(自身を除く): 33470868

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 53, 78, 106, 156, 159, 212, 318, 636, 689, 1378, 2067, 2593, 2756, 4134, 5186, 7779, 8268, 10372, 15558, 31116, 33709, 67418, 101127, 134836, 137429, 202254, 274858, 404508, 412287, 549716, 824574, 1649148, 1786577, 3573154, 5359731, 7146308, 10719462, 21438924]

約数ペア:

[(1, 21438924), (2, 10719462), (3, 7146308), (4, 5359731), (6, 3573154), (12, 1786577), (13, 1649148), (26, 824574), (39, 549716), (52, 412287), (53, 404508), (78, 274858), (106, 202254), (156, 137429), (159, 134836), (212, 101127), (318, 67418), (636, 33709), (689, 31116), (1378, 15558), (2067, 10372), (2593, 8268), (2756, 7779), (4134, 5186)]