641567129

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{1601}}^1$

素因数の和:1781

約数の個数: 32

約数和(自身を含む): 812021760

約数和(自身を除く): 170454631

約数列:

[1, 7, 19, 23, 131, 133, 161, 437, 917, 1601, 2489, 3013, 3059, 11207, 17423, 21091, 30419, 36823, 57247, 209731, 212933, 257761, 400729, 699637, 1468117, 3984889, 4823813, 4897459, 27894223, 33766691, 91652447, 641567129]

約数ペア:

[(1, 641567129), (7, 91652447), (19, 33766691), (23, 27894223), (131, 4897459), (133, 4823813), (161, 3984889), (437, 1468117), (917, 699637), (1601, 400729), (2489, 257761), (3013, 212933), (3059, 209731), (11207, 57247), (17423, 36823), (21091, 30419)]