221905404

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{409}}^1\times {\mathrm{2153}}^1$

素因数の和:2579

約数の個数: 72

約数和(自身を含む): 642925920

約数和(自身を除く): 421020516

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 409, 818, 1227, 1636, 2153, 2454, 2863, 3681, 4306, 4908, 5726, 6459, 7362, 8589, 8612, 11452, 12918, 14724, 15071, 17178, 19377, 25767, 25836, 30142, 34356, 38754, 45213, 51534, 60284, 77508, 90426, 103068, 135639, 180852, 271278, 542556, 880577, 1761154, 2641731, 3522308, 5283462, 6164039, 7925193, 10566924, 12328078, 15850386, 18492117, 24656156, 31700772, 36984234, 55476351, 73968468, 110952702, 221905404]

約数ペア:

[(1, 221905404), (2, 110952702), (3, 73968468), (4, 55476351), (6, 36984234), (7, 31700772), (9, 24656156), (12, 18492117), (14, 15850386), (18, 12328078), (21, 10566924), (28, 7925193), (36, 6164039), (42, 5283462), (63, 3522308), (84, 2641731), (126, 1761154), (252, 880577), (409, 542556), (818, 271278), (1227, 180852), (1636, 135639), (2153, 103068), (2454, 90426), (2863, 77508), (3681, 60284), (4306, 51534), (4908, 45213), (5726, 38754), (6459, 34356), (7362, 30142), (8589, 25836), (8612, 25767), (11452, 19377), (12918, 17178), (14724, 15071)]