25984231

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 33775616

約数和(自身を除く): 7791385

約数列:

[1, 7, 13, 31, 61, 91, 151, 217, 403, 427, 793, 1057, 1891, 1963, 2821, 4681, 5551, 9211, 13237, 13741, 24583, 32767, 60853, 64477, 119743, 172081, 285541, 425971, 838201, 1998787, 3712033, 25984231]

約数ペア:

[(1, 25984231), (7, 3712033), (13, 1998787), (31, 838201), (61, 425971), (91, 285541), (151, 172081), (217, 119743), (403, 64477), (427, 60853), (793, 32767), (1057, 24583), (1891, 13741), (1963, 13237), (2821, 9211), (4681, 5551)]