21966540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{269}}^1\times {\mathrm{1361}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 61780320

約数和(自身を除く): 39813780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 269, 538, 807, 1076, 1345, 1361, 1614, 2690, 2722, 3228, 4035, 4083, 5380, 5444, 6805, 8070, 8166, 13610, 16140, 16332, 20415, 27220, 40830, 81660, 366109, 732218, 1098327, 1464436, 1830545, 2196654, 3661090, 4393308, 5491635, 7322180, 10983270, 21966540]

約数ペア:

[(1, 21966540), (2, 10983270), (3, 7322180), (4, 5491635), (5, 4393308), (6, 3661090), (10, 2196654), (12, 1830545), (15, 1464436), (20, 1098327), (30, 732218), (60, 366109), (269, 81660), (538, 40830), (807, 27220), (1076, 20415), (1345, 16332), (1361, 16140), (1614, 13610), (2690, 8166), (2722, 8070), (3228, 6805), (4035, 5444), (4083, 5380)]