19715444

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 43637832

約数和(自身を除く): 23922388

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 61, 68, 97, 98, 119, 122, 194, 196, 238, 244, 388, 427, 476, 679, 833, 854, 1037, 1358, 1649, 1666, 1708, 2074, 2716, 2989, 3298, 3332, 4148, 4753, 5917, 5978, 6596, 7259, 9506, 11543, 11834, 11956, 14518, 19012, 23086, 23668, 29036, 41419, 46172, 50813, 80801, 82838, 100589, 101626, 161602, 165676, 201178, 203252, 289933, 323204, 402356, 579866, 704123, 1159732, 1408246, 2816492, 4928861, 9857722, 19715444]

約数ペア:

[(1, 19715444), (2, 9857722), (4, 4928861), (7, 2816492), (14, 1408246), (17, 1159732), (28, 704123), (34, 579866), (49, 402356), (61, 323204), (68, 289933), (97, 203252), (98, 201178), (119, 165676), (122, 161602), (194, 101626), (196, 100589), (238, 82838), (244, 80801), (388, 50813), (427, 46172), (476, 41419), (679, 29036), (833, 23668), (854, 23086), (1037, 19012), (1358, 14518), (1649, 11956), (1666, 11834), (1708, 11543), (2074, 9506), (2716, 7259), (2989, 6596), (3298, 5978), (3332, 5917), (4148, 4753)]