21139325090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3023}}^1\times {\mathrm{53791}}^1$

素因数の和:56834

約数の個数: 32

約数和(自身を含む): 40992086016

約数和(自身を除く): 19852760926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 3023, 6046, 15115, 30230, 39299, 53791, 78598, 107582, 196495, 268955, 392990, 537910, 699283, 1398566, 3496415, 6992830, 162610193, 325220386, 813050965, 1626101930, 2113932509, 4227865018, 10569662545, 21139325090]

約数ペア:

[(1, 21139325090), (2, 10569662545), (5, 4227865018), (10, 2113932509), (13, 1626101930), (26, 813050965), (65, 325220386), (130, 162610193), (3023, 6992830), (6046, 3496415), (15115, 1398566), (30230, 699283), (39299, 537910), (53791, 392990), (78598, 268955), (107582, 196495)]