21862659

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1511}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 36578304

約数和(自身を除く): 14715645

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1511, 2067, 4533, 4823, 10577, 14469, 19643, 31731, 58929, 80083, 137501, 240249, 412503, 560581, 1041079, 1681743, 3123237, 7287553, 21862659]

約数ペア:

[(1, 21862659), (3, 7287553), (7, 3123237), (13, 1681743), (21, 1041079), (39, 560581), (53, 412503), (91, 240249), (159, 137501), (273, 80083), (371, 58929), (689, 31731), (1113, 19643), (1511, 14469), (2067, 10577), (4533, 4823)]