21986076

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{261739}}^1$

素因数の和:261753

約数の個数: 24

約数和(自身を含む): 58629760

約数和(自身を除く): 36643684

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 261739, 523478, 785217, 1046956, 1570434, 1832173, 3140868, 3664346, 5496519, 7328692, 10993038, 21986076]

約数ペア:

[(1, 21986076), (2, 10993038), (3, 7328692), (4, 5496519), (6, 3664346), (7, 3140868), (12, 1832173), (14, 1570434), (21, 1046956), (28, 785217), (42, 523478), (84, 261739)]