19173872

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{43}}^1$

素因数の和:142

約数の個数: 60

約数和(自身を含む): 40633560

約数和(自身を除く): 21459688

約数列:

[1, 2, 4, 8, 16, 29, 31, 43, 58, 62, 86, 116, 124, 172, 232, 248, 344, 464, 496, 688, 899, 961, 1247, 1333, 1798, 1922, 2494, 2666, 3596, 3844, 4988, 5332, 7192, 7688, 9976, 10664, 14384, 15376, 19952, 21328, 27869, 38657, 41323, 55738, 77314, 82646, 111476, 154628, 165292, 222952, 309256, 330584, 445904, 618512, 661168, 1198367, 2396734, 4793468, 9586936, 19173872]

約数ペア:

[(1, 19173872), (2, 9586936), (4, 4793468), (8, 2396734), (16, 1198367), (29, 661168), (31, 618512), (43, 445904), (58, 330584), (62, 309256), (86, 222952), (116, 165292), (124, 154628), (172, 111476), (232, 82646), (248, 77314), (344, 55738), (464, 41323), (496, 38657), (688, 27869), (899, 21328), (961, 19952), (1247, 15376), (1333, 14384), (1798, 10664), (1922, 9976), (2494, 7688), (2666, 7192), (3596, 5332), (3844, 4988)]