19979463

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 12161337

約数列:

[1, 3, 7, 21, 29, 53, 87, 159, 203, 371, 609, 619, 1113, 1537, 1857, 4333, 4611, 10759, 12999, 17951, 32277, 32807, 53853, 98421, 125657, 229649, 376971, 688947, 951403, 2854209, 6659821, 19979463]

約数ペア:

[(1, 19979463), (3, 6659821), (7, 2854209), (21, 951403), (29, 688947), (53, 376971), (87, 229649), (159, 125657), (203, 98421), (371, 53853), (609, 32807), (619, 32277), (1113, 17951), (1537, 12999), (1857, 10759), (4333, 4611)]