21979232

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3673}}^1$

素因数の和:3711

約数の個数: 48

約数和(自身を含む): 49995792

約数和(自身を除く): 28016560

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 3673, 5984, 7346, 14692, 29384, 40403, 58768, 62441, 80806, 117536, 124882, 161612, 249764, 323224, 499528, 646448, 686851, 999056, 1292896, 1373702, 1998112, 2747404, 5494808, 10989616, 21979232]

約数ペア:

[(1, 21979232), (2, 10989616), (4, 5494808), (8, 2747404), (11, 1998112), (16, 1373702), (17, 1292896), (22, 999056), (32, 686851), (34, 646448), (44, 499528), (68, 323224), (88, 249764), (136, 161612), (176, 124882), (187, 117536), (272, 80806), (352, 62441), (374, 58768), (544, 40403), (748, 29384), (1496, 14692), (2992, 7346), (3673, 5984)]