7221285

素因数分解:

$3^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 12960000

約数和(自身を除く): 5738715

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 149, 359, 447, 745, 1077, 1341, 1795, 2235, 3231, 4023, 5385, 6705, 9693, 16155, 20115, 48465, 53491, 160473, 267455, 481419, 802365, 1444257, 2407095, 7221285]

約数ペア:

[(1, 7221285), (3, 2407095), (5, 1444257), (9, 802365), (15, 481419), (27, 267455), (45, 160473), (135, 53491), (149, 48465), (359, 20115), (447, 16155), (745, 9693), (1077, 6705), (1341, 5385), (1795, 4023), (2235, 3231)]