21402888

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 58094400

約数和(自身を除く): 36691512

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 181, 312, 362, 379, 543, 724, 758, 1086, 1137, 1448, 1516, 2172, 2274, 2353, 3032, 4344, 4548, 4706, 4927, 7059, 9096, 9412, 9854, 14118, 14781, 18824, 19708, 28236, 29562, 39416, 56472, 59124, 68599, 118248, 137198, 205797, 274396, 411594, 548792, 823188, 891787, 1646376, 1783574, 2675361, 3567148, 5350722, 7134296, 10701444, 21402888]

約数ペア:

[(1, 21402888), (2, 10701444), (3, 7134296), (4, 5350722), (6, 3567148), (8, 2675361), (12, 1783574), (13, 1646376), (24, 891787), (26, 823188), (39, 548792), (52, 411594), (78, 274396), (104, 205797), (156, 137198), (181, 118248), (312, 68599), (362, 59124), (379, 56472), (543, 39416), (724, 29562), (758, 28236), (1086, 19708), (1137, 18824), (1448, 14781), (1516, 14118), (2172, 9854), (2274, 9412), (2353, 9096), (3032, 7059), (4344, 4927), (4548, 4706)]