19722665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 26557440

約数和(自身を除く): 6834775

約数列:

[1, 5, 19, 31, 37, 95, 155, 181, 185, 589, 703, 905, 1147, 2945, 3439, 3515, 5611, 5735, 6697, 17195, 21793, 28055, 33485, 106609, 108965, 127243, 207607, 533045, 636215, 1038035, 3944533, 19722665]

約数ペア:

[(1, 19722665), (5, 3944533), (19, 1038035), (31, 636215), (37, 533045), (95, 207607), (155, 127243), (181, 108965), (185, 106609), (589, 33485), (703, 28055), (905, 21793), (1147, 17195), (2945, 6697), (3439, 5735), (3515, 5611)]