21190728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2953}}^1$

素因数の和:2998

約数の個数: 64

約数和(自身を含む): 59552640

約数和(自身を除く): 38361912

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 23, 24, 26, 39, 46, 52, 69, 78, 92, 104, 138, 156, 184, 276, 299, 312, 552, 598, 897, 1196, 1794, 2392, 2953, 3588, 5906, 7176, 8859, 11812, 17718, 23624, 35436, 38389, 67919, 70872, 76778, 115167, 135838, 153556, 203757, 230334, 271676, 307112, 407514, 460668, 543352, 815028, 882947, 921336, 1630056, 1765894, 2648841, 3531788, 5297682, 7063576, 10595364, 21190728]

約数ペア:

[(1, 21190728), (2, 10595364), (3, 7063576), (4, 5297682), (6, 3531788), (8, 2648841), (12, 1765894), (13, 1630056), (23, 921336), (24, 882947), (26, 815028), (39, 543352), (46, 460668), (52, 407514), (69, 307112), (78, 271676), (92, 230334), (104, 203757), (138, 153556), (156, 135838), (184, 115167), (276, 76778), (299, 70872), (312, 67919), (552, 38389), (598, 35436), (897, 23624), (1196, 17718), (1794, 11812), (2392, 8859), (2953, 7176), (3588, 5906)]