21149940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1361}}^1$

素因数の和:1417

約数の個数: 96

約数和(自身を含む): 69560064

約数和(自身を除く): 48410124

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1361, 1554, 2220, 2590, 2722, 3108, 3885, 4083, 5180, 5444, 6805, 7770, 8166, 9527, 13610, 15540, 16332, 19054, 20415, 27220, 28581, 38108, 40830, 47635, 50357, 57162, 81660, 95270, 100714, 114324, 142905, 151071, 190540, 201428, 251785, 285810, 302142, 352499, 503570, 571620, 604284, 704998, 755355, 1007140, 1057497, 1409996, 1510710, 1762495, 2114994, 3021420, 3524990, 4229988, 5287485, 7049980, 10574970, 21149940]

約数ペア:

[(1, 21149940), (2, 10574970), (3, 7049980), (4, 5287485), (5, 4229988), (6, 3524990), (7, 3021420), (10, 2114994), (12, 1762495), (14, 1510710), (15, 1409996), (20, 1057497), (21, 1007140), (28, 755355), (30, 704998), (35, 604284), (37, 571620), (42, 503570), (60, 352499), (70, 302142), (74, 285810), (84, 251785), (105, 201428), (111, 190540), (140, 151071), (148, 142905), (185, 114324), (210, 100714), (222, 95270), (259, 81660), (370, 57162), (420, 50357), (444, 47635), (518, 40830), (555, 38108), (740, 28581), (777, 27220), (1036, 20415), (1110, 19054), (1295, 16332), (1361, 15540), (1554, 13610), (2220, 9527), (2590, 8166), (2722, 7770), (3108, 6805), (3885, 5444), (4083, 5180)]