15557409

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 27780480

約数和(自身を除く): 12223071

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 287, 317, 369, 399, 779, 861, 951, 1197, 2219, 2337, 2583, 2853, 5453, 6023, 6657, 7011, 12997, 16359, 18069, 19971, 38991, 42161, 49077, 54207, 90979, 116973, 126483, 246943, 272937, 379449, 740829, 818811, 1728601, 2222487, 5185803, 15557409]

約数ペア:

[(1, 15557409), (3, 5185803), (7, 2222487), (9, 1728601), (19, 818811), (21, 740829), (41, 379449), (57, 272937), (63, 246943), (123, 126483), (133, 116973), (171, 90979), (287, 54207), (317, 49077), (369, 42161), (399, 38991), (779, 19971), (861, 18069), (951, 16359), (1197, 12997), (2219, 7011), (2337, 6657), (2583, 6023), (2853, 5453)]