19883804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4289}}^1$

素因数の和:4373

約数の個数: 24

約数和(自身を含む): 37237200

約数和(自身を除く): 17353396

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4289, 4636, 8578, 17156, 81491, 162982, 261629, 325964, 523258, 1046516, 4970951, 9941902, 19883804]

約数ペア:

[(1, 19883804), (2, 9941902), (4, 4970951), (19, 1046516), (38, 523258), (61, 325964), (76, 261629), (122, 162982), (244, 81491), (1159, 17156), (2318, 8578), (4289, 4636)]