17380181

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:213

約数の個数: 32

約数和(自身を含む): 22665216

約数和(自身を除く): 5285035

約数列:

[1, 7, 13, 31, 61, 91, 101, 217, 403, 427, 707, 793, 1313, 1891, 2821, 3131, 5551, 6161, 9191, 13237, 21917, 24583, 40703, 43127, 80093, 172081, 190991, 284921, 560651, 1336937, 2482883, 17380181]

約数ペア:

[(1, 17380181), (7, 2482883), (13, 1336937), (31, 560651), (61, 284921), (91, 190991), (101, 172081), (217, 80093), (403, 43127), (427, 40703), (707, 24583), (793, 21917), (1313, 13237), (1891, 9191), (2821, 6161), (3131, 5551)]