21902538

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 51996672

約数和(自身を除く): 30094134

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 83, 103, 122, 166, 183, 206, 249, 309, 366, 427, 498, 581, 618, 721, 854, 1162, 1281, 1442, 1743, 2163, 2562, 3486, 4326, 5063, 6283, 8549, 10126, 12566, 15189, 17098, 18849, 25647, 30378, 35441, 37698, 43981, 51294, 59843, 70882, 87962, 106323, 119686, 131943, 179529, 212646, 263886, 359058, 521489, 1042978, 1564467, 3128934, 3650423, 7300846, 10951269, 21902538]

約数ペア:

[(1, 21902538), (2, 10951269), (3, 7300846), (6, 3650423), (7, 3128934), (14, 1564467), (21, 1042978), (42, 521489), (61, 359058), (83, 263886), (103, 212646), (122, 179529), (166, 131943), (183, 119686), (206, 106323), (249, 87962), (309, 70882), (366, 59843), (427, 51294), (498, 43981), (581, 37698), (618, 35441), (721, 30378), (854, 25647), (1162, 18849), (1281, 17098), (1442, 15189), (1743, 12566), (2163, 10126), (2562, 8549), (3486, 6283), (4326, 5063)]