18971036

素因数分解:

$2^2\times 7^2\times {\mathrm{151}}^1\times {\mathrm{641}}^1$

素因数の和:810

約数の個数: 36

約数和(自身を含む): 38936016

約数和(自身を除く): 19964980

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 151, 196, 302, 604, 641, 1057, 1282, 2114, 2564, 4228, 4487, 7399, 8974, 14798, 17948, 29596, 31409, 62818, 96791, 125636, 193582, 387164, 677537, 1355074, 2710148, 4742759, 9485518, 18971036]

約数ペア:

[(1, 18971036), (2, 9485518), (4, 4742759), (7, 2710148), (14, 1355074), (28, 677537), (49, 387164), (98, 193582), (151, 125636), (196, 96791), (302, 62818), (604, 31409), (641, 29596), (1057, 17948), (1282, 14798), (2114, 8974), (2564, 7399), (4228, 4487)]