19001818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:147

約数の個数: 48

約数和(自身を含む): 35100864

約数和(自身を除く): 16099046

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 47, 94, 187, 253, 374, 391, 506, 517, 782, 799, 1034, 1081, 1598, 2162, 2209, 4301, 4418, 8602, 8789, 11891, 17578, 18377, 23782, 24299, 36754, 37553, 48598, 50807, 75106, 101614, 202147, 404294, 413083, 558877, 826166, 863719, 1117754, 1727438, 9500909, 19001818]

約数ペア:

[(1, 19001818), (2, 9500909), (11, 1727438), (17, 1117754), (22, 863719), (23, 826166), (34, 558877), (46, 413083), (47, 404294), (94, 202147), (187, 101614), (253, 75106), (374, 50807), (391, 48598), (506, 37553), (517, 36754), (782, 24299), (799, 23782), (1034, 18377), (1081, 17578), (1598, 11891), (2162, 8789), (2209, 8602), (4301, 4418)]