21167976969

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{75991}}^1$

素因数の和:76203

約数の個数: 40

約数和(自身を含む): 33469916480

約数和(自身を除く): 12301939511

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 181, 513, 543, 1539, 1629, 3439, 4887, 10317, 14661, 30951, 75991, 92853, 227973, 278559, 683919, 1443829, 2051757, 4331487, 6155271, 12994461, 13754371, 38983383, 41263113, 116950149, 123789339, 261333049, 371368017, 783999147, 1114104051, 2351997441, 7055992323, 21167976969]

約数ペア:

[(1, 21167976969), (3, 7055992323), (9, 2351997441), (19, 1114104051), (27, 783999147), (57, 371368017), (81, 261333049), (171, 123789339), (181, 116950149), (513, 41263113), (543, 38983383), (1539, 13754371), (1629, 12994461), (3439, 6155271), (4887, 4331487), (10317, 2051757), (14661, 1443829), (30951, 683919), (75991, 278559), (92853, 227973)]