21117138

素因数分解:

$2^1\times 3^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 50995200

約数和(自身を除く): 29878062

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 49, 62, 93, 98, 147, 186, 217, 294, 331, 343, 434, 651, 662, 686, 993, 1029, 1302, 1519, 1986, 2058, 2317, 3038, 4557, 4634, 6951, 9114, 10261, 10633, 13902, 16219, 20522, 21266, 30783, 31899, 32438, 48657, 61566, 63798, 71827, 97314, 113533, 143654, 215481, 227066, 340599, 430962, 502789, 681198, 1005578, 1508367, 3016734, 3519523, 7039046, 10558569, 21117138]

約数ペア:

[(1, 21117138), (2, 10558569), (3, 7039046), (6, 3519523), (7, 3016734), (14, 1508367), (21, 1005578), (31, 681198), (42, 502789), (49, 430962), (62, 340599), (93, 227066), (98, 215481), (147, 143654), (186, 113533), (217, 97314), (294, 71827), (331, 63798), (343, 61566), (434, 48657), (651, 32438), (662, 31899), (686, 30783), (993, 21266), (1029, 20522), (1302, 16219), (1519, 13902), (1986, 10633), (2058, 10261), (2317, 9114), (3038, 6951), (4557, 4634)]