21861710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{797}}^1$

素因数の和:1028

約数の個数: 32

約数和(自身を含む): 42632352

約数和(自身を除く): 20770642

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 797, 1055, 1594, 2110, 2743, 3985, 5486, 7970, 10361, 13715, 20722, 27430, 51805, 103610, 168167, 336334, 840835, 1681670, 2186171, 4372342, 10930855, 21861710]

約数ペア:

[(1, 21861710), (2, 10930855), (5, 4372342), (10, 2186171), (13, 1681670), (26, 840835), (65, 336334), (130, 168167), (211, 103610), (422, 51805), (797, 27430), (1055, 20722), (1594, 13715), (2110, 10361), (2743, 7970), (3985, 5486)]