21931572170

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1159787}}^1$

素因数の和:1159886

約数の個数: 32

約数和(自身を含む): 41418349056

約数和(自身を除く): 19486776886

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1891, 3782, 9455, 18910, 1159787, 2319574, 5798935, 11597870, 35953397, 70747007, 71906794, 141494014, 179766985, 353735035, 359533970, 707470070, 2193157217, 4386314434, 10965786085, 21931572170]

約数ペア:

[(1, 21931572170), (2, 10965786085), (5, 4386314434), (10, 2193157217), (31, 707470070), (61, 359533970), (62, 353735035), (122, 179766985), (155, 141494014), (305, 71906794), (310, 70747007), (610, 35953397), (1891, 11597870), (3782, 5798935), (9455, 2319574), (18910, 1159787)]