21081762

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{509}}^1$

素因数の和:592

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 30326238

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 59, 78, 117, 118, 177, 234, 351, 354, 509, 531, 702, 767, 1018, 1062, 1527, 1534, 1593, 2301, 3054, 3186, 4581, 4602, 6617, 6903, 9162, 13234, 13743, 13806, 19851, 20709, 27486, 30031, 39702, 41418, 59553, 60062, 90093, 119106, 178659, 180186, 270279, 357318, 390403, 540558, 780806, 810837, 1171209, 1621674, 2342418, 3513627, 7027254, 10540881, 21081762]

約数ペア:

[(1, 21081762), (2, 10540881), (3, 7027254), (6, 3513627), (9, 2342418), (13, 1621674), (18, 1171209), (26, 810837), (27, 780806), (39, 540558), (54, 390403), (59, 357318), (78, 270279), (117, 180186), (118, 178659), (177, 119106), (234, 90093), (351, 60062), (354, 59553), (509, 41418), (531, 39702), (702, 30031), (767, 27486), (1018, 20709), (1062, 19851), (1527, 13806), (1534, 13743), (1593, 13234), (2301, 9162), (3054, 6903), (3186, 6617), (4581, 4602)]