19948952

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{40879}}^1$

素因数の和:40946

約数の個数: 16

約数和(自身を含む): 38018400

約数和(自身を除く): 18069448

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 40879, 81758, 163516, 327032, 2493619, 4987238, 9974476, 19948952]

約数ペア:

[(1, 19948952), (2, 9974476), (4, 4987238), (8, 2493619), (61, 327032), (122, 163516), (244, 81758), (488, 40879)]