215515503

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{677}}^1$

素因数の和:884

約数の個数: 48

約数和(自身を含む): 370046976

約数和(自身を除く): 154531473

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 163, 217, 279, 489, 651, 677, 1141, 1467, 1953, 2031, 3423, 4739, 5053, 6093, 10269, 14217, 15159, 20987, 35371, 42651, 45477, 62961, 106113, 110351, 146909, 188883, 318339, 331053, 440727, 772457, 993159, 1322181, 2317371, 3420881, 6952113, 10262643, 23946167, 30787929, 71838501, 215515503]

約数ペア:

[(1, 215515503), (3, 71838501), (7, 30787929), (9, 23946167), (21, 10262643), (31, 6952113), (63, 3420881), (93, 2317371), (163, 1322181), (217, 993159), (279, 772457), (489, 440727), (651, 331053), (677, 318339), (1141, 188883), (1467, 146909), (1953, 110351), (2031, 106113), (3423, 62961), (4739, 45477), (5053, 42651), (6093, 35371), (10269, 20987), (14217, 15159)]