18796491

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{383}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 14749749

約数列:

[1, 3, 7, 9, 19, 21, 41, 57, 63, 123, 133, 171, 287, 369, 383, 399, 779, 861, 1149, 1197, 2337, 2583, 2681, 3447, 5453, 7011, 7277, 8043, 15703, 16359, 21831, 24129, 47109, 49077, 50939, 65493, 109921, 141327, 152817, 298357, 329763, 458451, 895071, 989289, 2088499, 2685213, 6265497, 18796491]

約数ペア:

[(1, 18796491), (3, 6265497), (7, 2685213), (9, 2088499), (19, 989289), (21, 895071), (41, 458451), (57, 329763), (63, 298357), (123, 152817), (133, 141327), (171, 109921), (287, 65493), (369, 50939), (383, 49077), (399, 47109), (779, 24129), (861, 21831), (1149, 16359), (1197, 15703), (2337, 8043), (2583, 7277), (2681, 7011), (3447, 5453)]