21286232

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 47520000

約数和(自身を除く): 26233768

約数列:

[1, 2, 4, 8, 11, 19, 22, 29, 38, 44, 58, 76, 88, 116, 152, 209, 232, 319, 418, 439, 551, 638, 836, 878, 1102, 1276, 1672, 1756, 2204, 2552, 3512, 4408, 4829, 6061, 8341, 9658, 12122, 12731, 16682, 19316, 24244, 25462, 33364, 38632, 48488, 50924, 66728, 91751, 101848, 140041, 183502, 241889, 280082, 367004, 483778, 560164, 734008, 967556, 1120328, 1935112, 2660779, 5321558, 10643116, 21286232]

約数ペア:

[(1, 21286232), (2, 10643116), (4, 5321558), (8, 2660779), (11, 1935112), (19, 1120328), (22, 967556), (29, 734008), (38, 560164), (44, 483778), (58, 367004), (76, 280082), (88, 241889), (116, 183502), (152, 140041), (209, 101848), (232, 91751), (319, 66728), (418, 50924), (439, 48488), (551, 38632), (638, 33364), (836, 25462), (878, 24244), (1102, 19316), (1276, 16682), (1672, 12731), (1756, 12122), (2204, 9658), (2552, 8341), (3512, 6061), (4408, 4829)]