21938476

素因数分解:

$2^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{647}}^1$

素因数の和:838

約数の個数: 36

約数和(自身を含む): 44988048

約数和(自身を除く): 23049572

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 173, 196, 346, 647, 692, 1211, 1294, 2422, 2588, 4529, 4844, 8477, 9058, 16954, 18116, 31703, 33908, 63406, 111931, 126812, 223862, 447724, 783517, 1567034, 3134068, 5484619, 10969238, 21938476]

約数ペア:

[(1, 21938476), (2, 10969238), (4, 5484619), (7, 3134068), (14, 1567034), (28, 783517), (49, 447724), (98, 223862), (173, 126812), (196, 111931), (346, 63406), (647, 33908), (692, 31703), (1211, 18116), (1294, 16954), (2422, 9058), (2588, 8477), (4529, 4844)]