21093660

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{16741}}^1$

素因数の和:16763

約数の個数: 72

約数和(自身を含む): 73129056

約数和(自身を除く): 52035396

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, 16741, 33482, 50223, 66964, 83705, 100446, 117187, 150669, 167410, 200892, 234374, 251115, 301338, 334820, 351561, 468748, 502230, 585935, 602676, 703122, 753345, 1004460, 1054683, 1171870, 1406244, 1506690, 1757805, 2109366, 2343740, 3013380, 3515610, 4218732, 5273415, 7031220, 10546830, 21093660]

約数ペア:

[(1, 21093660), (2, 10546830), (3, 7031220), (4, 5273415), (5, 4218732), (6, 3515610), (7, 3013380), (9, 2343740), (10, 2109366), (12, 1757805), (14, 1506690), (15, 1406244), (18, 1171870), (20, 1054683), (21, 1004460), (28, 753345), (30, 703122), (35, 602676), (36, 585935), (42, 502230), (45, 468748), (60, 351561), (63, 334820), (70, 301338), (84, 251115), (90, 234374), (105, 200892), (126, 167410), (140, 150669), (180, 117187), (210, 100446), (252, 83705), (315, 66964), (420, 50223), (630, 33482), (1260, 16741)]