153909721

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1061}}^1$

素因数の和:1161

約数の個数: 32

約数和(自身を含む): 198194688

約数和(自身を除く): 44284967

約数列:

[1, 7, 17, 23, 53, 119, 161, 371, 391, 901, 1061, 1219, 2737, 6307, 7427, 8533, 18037, 20723, 24403, 56233, 126259, 145061, 170821, 393631, 414851, 955961, 1293359, 2903957, 6691727, 9053513, 21987103, 153909721]

約数ペア:

[(1, 153909721), (7, 21987103), (17, 9053513), (23, 6691727), (53, 2903957), (119, 1293359), (161, 955961), (371, 414851), (391, 393631), (901, 170821), (1061, 145061), (1219, 126259), (2737, 56233), (6307, 24403), (7427, 20723), (8533, 18037)]