15917307

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 26812800

約数和(自身を除く): 10895493

約数列:

[1, 3, 7, 19, 21, 41, 49, 57, 123, 133, 139, 147, 287, 399, 417, 779, 861, 931, 973, 2009, 2337, 2641, 2793, 2919, 5453, 5699, 6027, 6811, 7923, 16359, 17097, 18487, 20433, 38171, 39893, 55461, 108281, 114513, 119679, 129409, 279251, 324843, 388227, 757967, 837753, 2273901, 5305769, 15917307]

約数ペア:

[(1, 15917307), (3, 5305769), (7, 2273901), (19, 837753), (21, 757967), (41, 388227), (49, 324843), (57, 279251), (123, 129409), (133, 119679), (139, 114513), (147, 108281), (287, 55461), (399, 39893), (417, 38171), (779, 20433), (861, 18487), (931, 17097), (973, 16359), (2009, 7923), (2337, 6811), (2641, 6027), (2793, 5699), (2919, 5453)]