20898898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 34583040

約数和(自身を除く): 13684142

約数列:

[1, 2, 19, 31, 38, 62, 113, 157, 226, 314, 589, 1178, 2147, 2983, 3503, 4294, 4867, 5966, 7006, 9734, 17741, 35482, 66557, 92473, 133114, 184946, 337079, 549971, 674158, 1099942, 10449449, 20898898]

約数ペア:

[(1, 20898898), (2, 10449449), (19, 1099942), (31, 674158), (38, 549971), (62, 337079), (113, 184946), (157, 133114), (226, 92473), (314, 66557), (589, 35482), (1178, 17741), (2147, 9734), (2983, 7006), (3503, 5966), (4294, 4867)]