72121707

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 123735040

約数和(自身を除く): 51613333

約数列:

[1, 3, 7, 9, 21, 43, 63, 79, 129, 237, 301, 337, 387, 553, 711, 903, 1011, 1659, 2359, 2709, 3033, 3397, 4977, 7077, 10191, 14491, 21231, 23779, 26623, 30573, 43473, 71337, 79869, 101437, 130419, 186361, 214011, 239607, 304311, 559083, 912933, 1144789, 1677249, 3434367, 8013523, 10303101, 24040569, 72121707]

約数ペア:

[(1, 72121707), (3, 24040569), (7, 10303101), (9, 8013523), (21, 3434367), (43, 1677249), (63, 1144789), (79, 912933), (129, 559083), (237, 304311), (301, 239607), (337, 214011), (387, 186361), (553, 130419), (711, 101437), (903, 79869), (1011, 71337), (1659, 43473), (2359, 30573), (2709, 26623), (3033, 23779), (3397, 21231), (4977, 14491), (7077, 10191)]