20124807521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{18539}}^1$

素因数の和:18789

約数の個数: 32

約数和(自身を含む): 25249996800

約数和(自身を除く): 5125189279

約数列:

[1, 7, 13, 79, 91, 151, 553, 1027, 1057, 1963, 7189, 11929, 13741, 18539, 83503, 129773, 155077, 241007, 1085539, 1464581, 1687049, 2799389, 10252067, 19039553, 19595723, 36392057, 133276871, 221151731, 254744399, 1548062117, 2874972503, 20124807521]

約数ペア:

[(1, 20124807521), (7, 2874972503), (13, 1548062117), (79, 254744399), (91, 221151731), (151, 133276871), (553, 36392057), (1027, 19595723), (1057, 19039553), (1963, 10252067), (7189, 2799389), (11929, 1687049), (13741, 1464581), (18539, 1085539), (83503, 241007), (129773, 155077)]