21513450

素因数分解:

$2^1\times 3^1\times 5^2\times 7^2\times {\mathrm{2927}}^1$

素因数の和:2956

約数の個数: 72

約数和(自身を含む): 62085312

約数和(自身を除く): 40571862

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 49, 50, 70, 75, 98, 105, 147, 150, 175, 210, 245, 294, 350, 490, 525, 735, 1050, 1225, 1470, 2450, 2927, 3675, 5854, 7350, 8781, 14635, 17562, 20489, 29270, 40978, 43905, 61467, 73175, 87810, 102445, 122934, 143423, 146350, 204890, 219525, 286846, 307335, 430269, 439050, 512225, 614670, 717115, 860538, 1024450, 1434230, 1536675, 2151345, 3073350, 3585575, 4302690, 7171150, 10756725, 21513450]

約数ペア:

[(1, 21513450), (2, 10756725), (3, 7171150), (5, 4302690), (6, 3585575), (7, 3073350), (10, 2151345), (14, 1536675), (15, 1434230), (21, 1024450), (25, 860538), (30, 717115), (35, 614670), (42, 512225), (49, 439050), (50, 430269), (70, 307335), (75, 286846), (98, 219525), (105, 204890), (147, 146350), (150, 143423), (175, 122934), (210, 102445), (245, 87810), (294, 73175), (350, 61467), (490, 43905), (525, 40978), (735, 29270), (1050, 20489), (1225, 17562), (1470, 14635), (2450, 8781), (2927, 7350), (3675, 5854)]