21812238

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{523}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 54278016

約数和(自身を除く): 32465778

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 331, 523, 662, 993, 1046, 1569, 1986, 2317, 2979, 3138, 3661, 4634, 4707, 5958, 6951, 7322, 9414, 10983, 13902, 20853, 21966, 32949, 41706, 65898, 173113, 346226, 519339, 1038678, 1211791, 1558017, 2423582, 3116034, 3635373, 7270746, 10906119, 21812238]

約数ペア:

[(1, 21812238), (2, 10906119), (3, 7270746), (6, 3635373), (7, 3116034), (9, 2423582), (14, 1558017), (18, 1211791), (21, 1038678), (42, 519339), (63, 346226), (126, 173113), (331, 65898), (523, 41706), (662, 32949), (993, 21966), (1046, 20853), (1569, 13902), (1986, 10983), (2317, 9414), (2979, 7322), (3138, 6951), (3661, 5958), (4634, 4707)]