3997147

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:139

約数の個数: 32

約数和(自身を含む): 5428224

約数和(自身を除く): 1431077

約数列:

[1, 7, 11, 23, 37, 61, 77, 161, 253, 259, 407, 427, 671, 851, 1403, 1771, 2257, 2849, 4697, 5957, 9361, 9821, 15433, 15799, 24827, 51911, 65527, 108031, 173789, 363377, 571021, 3997147]

約数ペア:

[(1, 3997147), (7, 571021), (11, 363377), (23, 173789), (37, 108031), (61, 65527), (77, 51911), (161, 24827), (253, 15799), (259, 15433), (407, 9821), (427, 9361), (671, 5957), (851, 4697), (1403, 2849), (1771, 2257)]