20121911859

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{501931}}^1$

素因数の和:502047

約数の個数: 32

約数和(自身を含む): 32380637184

約数和(自身を除く): 12258725325

約数列:

[1, 3, 7, 21, 23, 69, 83, 161, 249, 483, 581, 1743, 1909, 5727, 13363, 40089, 501931, 1505793, 3513517, 10540551, 11544413, 34633239, 41660273, 80810891, 124980819, 242432673, 291621911, 874865733, 958186279, 2874558837, 6707303953, 20121911859]

約数ペア:

[(1, 20121911859), (3, 6707303953), (7, 2874558837), (21, 958186279), (23, 874865733), (69, 291621911), (83, 242432673), (161, 124980819), (249, 80810891), (483, 41660273), (581, 34633239), (1743, 11544413), (1909, 10540551), (5727, 3513517), (13363, 1505793), (40089, 501931)]