18841263

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 29890560

約数和(自身を除く): 11049297

約数列:

[1, 3, 7, 21, 41, 79, 123, 237, 277, 287, 553, 831, 861, 1659, 1939, 3239, 5817, 9717, 11357, 21883, 22673, 34071, 65649, 68019, 79499, 153181, 238497, 459543, 897203, 2691609, 6280421, 18841263]

約数ペア:

[(1, 18841263), (3, 6280421), (7, 2691609), (21, 897203), (41, 459543), (79, 238497), (123, 153181), (237, 79499), (277, 68019), (287, 65649), (553, 34071), (831, 22673), (861, 21883), (1659, 11357), (1939, 9717), (3239, 5817)]