21840994

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1747}}^1$

素因数の和:1822

約数の個数: 32

約数和(自身を含む): 40273920

約数和(自身を除く): 18432926

約数列:

[1, 2, 7, 14, 19, 38, 47, 94, 133, 266, 329, 658, 893, 1747, 1786, 3494, 6251, 12229, 12502, 24458, 33193, 66386, 82109, 164218, 232351, 464702, 574763, 1149526, 1560071, 3120142, 10920497, 21840994]

約数ペア:

[(1, 21840994), (2, 10920497), (7, 3120142), (14, 1560071), (19, 1149526), (38, 574763), (47, 464702), (94, 232351), (133, 164218), (266, 82109), (329, 66386), (658, 33193), (893, 24458), (1747, 12502), (1786, 12229), (3494, 6251)]