18722486

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 30935520

約数和(自身を除く): 12213034

約数列:

[1, 2, 19, 38, 41, 61, 82, 122, 197, 394, 779, 1159, 1558, 2318, 2501, 3743, 5002, 7486, 8077, 12017, 16154, 24034, 47519, 95038, 153463, 228323, 306926, 456646, 492697, 985394, 9361243, 18722486]

約数ペア:

[(1, 18722486), (2, 9361243), (19, 985394), (38, 492697), (41, 456646), (61, 306926), (82, 228323), (122, 153463), (197, 95038), (394, 47519), (779, 24034), (1159, 16154), (1558, 12017), (2318, 8077), (2501, 7486), (3743, 5002)]