21195772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{5741}}^1$

素因数の和:5829

約数の個数: 24

約数和(自身を含む): 40515552

約数和(自身を除く): 19319780

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 5741, 11482, 22964, 74633, 149266, 298532, 407611, 815222, 1630444, 5298943, 10597886, 21195772]

約数ペア:

[(1, 21195772), (2, 10597886), (4, 5298943), (13, 1630444), (26, 815222), (52, 407611), (71, 298532), (142, 149266), (284, 74633), (923, 22964), (1846, 11482), (3692, 5741)]