18019516

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1089

約数の個数: 24

約数和(自身を含む): 32489856

約数和(自身を除く): 14470340

約数列:

[1, 2, 4, 67, 71, 134, 142, 268, 284, 947, 1894, 3788, 4757, 9514, 19028, 63449, 67237, 126898, 134474, 253796, 268948, 4504879, 9009758, 18019516]

約数ペア:

[(1, 18019516), (2, 9009758), (4, 4504879), (67, 268948), (71, 253796), (134, 134474), (142, 126898), (268, 67237), (284, 63449), (947, 19028), (1894, 9514), (3788, 4757)]