420121443

素因数分解:

$3^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{19181}}^1$

素因数の和:19347

約数の個数: 24

約数和(自身を含む): 656024400

約数和(自身を除く): 235902957

約数列:

[1, 3, 7, 21, 49, 147, 149, 447, 1043, 3129, 7301, 19181, 21903, 57543, 134267, 402801, 939869, 2819607, 2857969, 8573907, 20005783, 60017349, 140040481, 420121443]

約数ペア:

[(1, 420121443), (3, 140040481), (7, 60017349), (21, 20005783), (49, 8573907), (147, 2857969), (149, 2819607), (447, 939869), (1043, 402801), (3129, 134267), (7301, 57543), (19181, 21903)]