201212121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{1259}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 304819200

約数和(自身を除く): 103607079

約数列:

[1, 3, 11, 29, 33, 87, 167, 319, 501, 957, 1259, 1837, 3777, 4843, 5511, 13849, 14529, 36511, 41547, 53273, 109533, 159819, 210253, 401621, 630759, 1204863, 2312783, 6097337, 6938349, 18292011, 67070707, 201212121]

約数ペア:

[(1, 201212121), (3, 67070707), (11, 18292011), (29, 6938349), (33, 6097337), (87, 2312783), (167, 1204863), (319, 630759), (501, 401621), (957, 210253), (1259, 159819), (1837, 109533), (3777, 53273), (4843, 41547), (5511, 36511), (13849, 14529)]