21020238723

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{41263}}^1$

素因数の和:41679

約数の個数: 32

約数和(自身を含む): 31373844480

約数和(自身を除く): 10353605757

約数列:

[1, 3, 11, 33, 43, 129, 359, 473, 1077, 1419, 3949, 11847, 15437, 41263, 46311, 123789, 169807, 453893, 509421, 1361679, 1774309, 5322927, 14813417, 19517399, 44440251, 58552197, 162947587, 488842761, 636976931, 1910930793, 7006746241, 21020238723]

約数ペア:

[(1, 21020238723), (3, 7006746241), (11, 1910930793), (33, 636976931), (43, 488842761), (129, 162947587), (359, 58552197), (473, 44440251), (1077, 19517399), (1419, 14813417), (3949, 5322927), (11847, 1774309), (15437, 1361679), (41263, 509421), (46311, 453893), (123789, 169807)]