21037590

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11131}}^1$

素因数の和:11154

約数の個数: 64

約数和(自身を含む): 64120320

約数和(自身を除く): 43082730

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 11131, 22262, 33393, 55655, 66786, 77917, 100179, 111310, 155834, 166965, 200358, 233751, 300537, 333930, 389585, 467502, 500895, 601074, 701253, 779170, 1001790, 1168755, 1402506, 1502685, 2103759, 2337510, 3005370, 3506265, 4207518, 7012530, 10518795, 21037590]

約数ペア:

[(1, 21037590), (2, 10518795), (3, 7012530), (5, 4207518), (6, 3506265), (7, 3005370), (9, 2337510), (10, 2103759), (14, 1502685), (15, 1402506), (18, 1168755), (21, 1001790), (27, 779170), (30, 701253), (35, 601074), (42, 500895), (45, 467502), (54, 389585), (63, 333930), (70, 300537), (90, 233751), (105, 200358), (126, 166965), (135, 155834), (189, 111310), (210, 100179), (270, 77917), (315, 66786), (378, 55655), (630, 33393), (945, 22262), (1890, 11131)]