19974195

素因数分解:

$3^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{331}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 36154800

約数和(自身を除く): 16180605

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 149, 331, 405, 447, 745, 993, 1341, 1655, 2235, 2979, 4023, 4965, 6705, 8937, 12069, 14895, 20115, 26811, 44685, 49319, 60345, 134055, 147957, 246595, 443871, 739785, 1331613, 2219355, 3994839, 6658065, 19974195]

約数ペア:

[(1, 19974195), (3, 6658065), (5, 3994839), (9, 2219355), (15, 1331613), (27, 739785), (45, 443871), (81, 246595), (135, 147957), (149, 134055), (331, 60345), (405, 49319), (447, 44685), (745, 26811), (993, 20115), (1341, 14895), (1655, 12069), (2235, 8937), (2979, 6705), (4023, 4965)]