21075579

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5869}}^1$

素因数の和:5904

約数の個数: 32

約数和(自身を含む): 37568000

約数和(自身を除く): 16492421

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5869, 17607, 41083, 52821, 111511, 123249, 158463, 334533, 369747, 780577, 1003599, 1109241, 2341731, 3010797, 7025193, 21075579]

約数ペア:

[(1, 21075579), (3, 7025193), (7, 3010797), (9, 2341731), (19, 1109241), (21, 1003599), (27, 780577), (57, 369747), (63, 334533), (133, 158463), (171, 123249), (189, 111511), (399, 52821), (513, 41083), (1197, 17607), (3591, 5869)]