21767728

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{22303}}^1$

素因数の和:22372

約数の個数: 20

約数和(自身を含む): 42868288

約数和(自身を除く): 21100560

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 22303, 44606, 89212, 178424, 356848, 1360483, 2720966, 5441932, 10883864, 21767728]

約数ペア:

[(1, 21767728), (2, 10883864), (4, 5441932), (8, 2720966), (16, 1360483), (61, 356848), (122, 178424), (244, 89212), (488, 44606), (976, 22303)]