21872670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{811}}^1$

素因数の和:881

約数の個数: 64

約数和(自身を含む): 56125440

約数和(自身を除く): 34252770

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 31, 58, 62, 87, 93, 145, 155, 174, 186, 290, 310, 435, 465, 811, 870, 899, 930, 1622, 1798, 2433, 2697, 4055, 4495, 4866, 5394, 8110, 8990, 12165, 13485, 23519, 24330, 25141, 26970, 47038, 50282, 70557, 75423, 117595, 125705, 141114, 150846, 235190, 251410, 352785, 377115, 705570, 729089, 754230, 1458178, 2187267, 3645445, 4374534, 7290890, 10936335, 21872670]

約数ペア:

[(1, 21872670), (2, 10936335), (3, 7290890), (5, 4374534), (6, 3645445), (10, 2187267), (15, 1458178), (29, 754230), (30, 729089), (31, 705570), (58, 377115), (62, 352785), (87, 251410), (93, 235190), (145, 150846), (155, 141114), (174, 125705), (186, 117595), (290, 75423), (310, 70557), (435, 50282), (465, 47038), (811, 26970), (870, 25141), (899, 24330), (930, 23519), (1622, 13485), (1798, 12165), (2433, 8990), (2697, 8110), (4055, 5394), (4495, 4866)]