19499504

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{19979}}^1$

素因数の和:20048

約数の個数: 20

約数和(自身を含む): 38401560

約数和(自身を除く): 18902056

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 19979, 39958, 79916, 159832, 319664, 1218719, 2437438, 4874876, 9749752, 19499504]

約数ペア:

[(1, 19499504), (2, 9749752), (4, 4874876), (8, 2437438), (16, 1218719), (61, 319664), (122, 159832), (244, 79916), (488, 39958), (976, 19979)]