21902580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{17383}}^1$

素因数の和:17405

約数の個数: 72

約数和(自身を含む): 75933312

約数和(自身を除く): 54030732

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 17383, 34766, 52149, 69532, 86915, 104298, 121681, 156447, 173830, 208596, 243362, 260745, 312894, 347660, 365043, 486724, 521490, 608405, 625788, 730086, 782235, 1042980, 1095129, 1216810, 1460172, 1564470, 1825215, 2190258, 2433620, 3128940, 3650430, 4380516, 5475645, 7300860, 10951290, 21902580]

約数ペア:

[(1, 21902580), (2, 10951290), (3, 7300860), (4, 5475645), (5, 4380516), (6, 3650430), (7, 3128940), (9, 2433620), (10, 2190258), (12, 1825215), (14, 1564470), (15, 1460172), (18, 1216810), (20, 1095129), (21, 1042980), (28, 782235), (30, 730086), (35, 625788), (36, 608405), (42, 521490), (45, 486724), (60, 365043), (63, 347660), (70, 312894), (84, 260745), (90, 243362), (105, 208596), (126, 173830), (140, 156447), (180, 121681), (210, 104298), (252, 86915), (315, 69532), (420, 52149), (630, 34766), (1260, 17383)]