400799427

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{2243}}^1$

素因数の和:2447

約数の個数: 32

約数和(自身を含む): 625016832

約数和(自身を除く): 224217405

約数列:

[1, 3, 7, 21, 67, 127, 201, 381, 469, 889, 1407, 2243, 2667, 6729, 8509, 15701, 25527, 47103, 59563, 150281, 178689, 284861, 450843, 854583, 1051967, 1994027, 3155901, 5982081, 19085687, 57257061, 133599809, 400799427]

約数ペア:

[(1, 400799427), (3, 133599809), (7, 57257061), (21, 19085687), (67, 5982081), (127, 3155901), (201, 1994027), (381, 1051967), (469, 854583), (889, 450843), (1407, 284861), (2243, 178689), (2667, 150281), (6729, 59563), (8509, 47103), (15701, 25527)]