20498985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{523}}^1$

素因数の和:614

約数の個数: 48

約数和(自身を含む): 38910144

約数和(自身を除く): 18411159

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 67, 117, 195, 201, 335, 523, 585, 603, 871, 1005, 1569, 2613, 2615, 3015, 4355, 4707, 6799, 7839, 7845, 13065, 20397, 23535, 33995, 35041, 39195, 61191, 101985, 105123, 175205, 305955, 315369, 455533, 525615, 1366599, 1576845, 2277665, 4099797, 6832995, 20498985]

約数ペア:

[(1, 20498985), (3, 6832995), (5, 4099797), (9, 2277665), (13, 1576845), (15, 1366599), (39, 525615), (45, 455533), (65, 315369), (67, 305955), (117, 175205), (195, 105123), (201, 101985), (335, 61191), (523, 39195), (585, 35041), (603, 33995), (871, 23535), (1005, 20397), (1569, 13065), (2613, 7845), (2615, 7839), (3015, 6799), (4355, 4707)]