229739979

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 367134720

約数和(自身を除く): 137394741

約数列:

[1, 3, 7, 21, 49, 73, 79, 147, 219, 237, 271, 511, 553, 813, 1533, 1659, 1897, 3577, 3871, 5691, 5767, 10731, 11613, 13279, 17301, 19783, 21409, 39837, 40369, 59349, 64227, 121107, 138481, 149863, 282583, 415443, 449589, 847749, 969367, 1049041, 1562857, 2908101, 3147123, 4688571, 10939999, 32819997, 76579993, 229739979]

約数ペア:

[(1, 229739979), (3, 76579993), (7, 32819997), (21, 10939999), (49, 4688571), (73, 3147123), (79, 2908101), (147, 1562857), (219, 1049041), (237, 969367), (271, 847749), (511, 449589), (553, 415443), (813, 282583), (1533, 149863), (1659, 138481), (1897, 121107), (3577, 64227), (3871, 59349), (5691, 40369), (5767, 39837), (10731, 21409), (11613, 19783), (13279, 17301)]