19982508

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{631}}^1$

素因数の和:687

約数の個数: 96

約数和(自身を含む): 59458560

約数和(自身を除く): 39476052

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 52, 58, 78, 84, 87, 91, 116, 156, 174, 182, 203, 273, 348, 364, 377, 406, 546, 609, 631, 754, 812, 1092, 1131, 1218, 1262, 1508, 1893, 2262, 2436, 2524, 2639, 3786, 4417, 4524, 5278, 7572, 7917, 8203, 8834, 10556, 13251, 15834, 16406, 17668, 18299, 24609, 26502, 31668, 32812, 36598, 49218, 53004, 54897, 57421, 73196, 98436, 109794, 114842, 128093, 172263, 219588, 229684, 237887, 256186, 344526, 384279, 475774, 512372, 689052, 713661, 768558, 951548, 1427322, 1537116, 1665209, 2854644, 3330418, 4995627, 6660836, 9991254, 19982508]

約数ペア:

[(1, 19982508), (2, 9991254), (3, 6660836), (4, 4995627), (6, 3330418), (7, 2854644), (12, 1665209), (13, 1537116), (14, 1427322), (21, 951548), (26, 768558), (28, 713661), (29, 689052), (39, 512372), (42, 475774), (52, 384279), (58, 344526), (78, 256186), (84, 237887), (87, 229684), (91, 219588), (116, 172263), (156, 128093), (174, 114842), (182, 109794), (203, 98436), (273, 73196), (348, 57421), (364, 54897), (377, 53004), (406, 49218), (546, 36598), (609, 32812), (631, 31668), (754, 26502), (812, 24609), (1092, 18299), (1131, 17668), (1218, 16406), (1262, 15834), (1508, 13251), (1893, 10556), (2262, 8834), (2436, 8203), (2524, 7917), (2639, 7572), (3786, 5278), (4417, 4524)]