238391209

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 289843200

約数和(自身を除く): 51451991

約数列:

[1, 7, 31, 73, 101, 149, 217, 511, 707, 1043, 2263, 3131, 4619, 7373, 10877, 15049, 15841, 21917, 32333, 51611, 76139, 105343, 228563, 337187, 466519, 1098577, 1599941, 2360309, 3265633, 7690039, 34055887, 238391209]

約数ペア:

[(1, 238391209), (7, 34055887), (31, 7690039), (73, 3265633), (101, 2360309), (149, 1599941), (217, 1098577), (511, 466519), (707, 337187), (1043, 228563), (2263, 105343), (3131, 76139), (4619, 51611), (7373, 32333), (10877, 21917), (15049, 15841)]