21450420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{13241}}^1$

素因数の和:13262

約数の個数: 60

約数和(自身を含む): 67295844

約数和(自身を除く): 45845424

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 13241, 26482, 39723, 52964, 66205, 79446, 119169, 132410, 158892, 198615, 238338, 264820, 357507, 397230, 476676, 595845, 715014, 794460, 1072521, 1191690, 1430028, 1787535, 2145042, 2383380, 3575070, 4290084, 5362605, 7150140, 10725210, 21450420]

約数ペア:

[(1, 21450420), (2, 10725210), (3, 7150140), (4, 5362605), (5, 4290084), (6, 3575070), (9, 2383380), (10, 2145042), (12, 1787535), (15, 1430028), (18, 1191690), (20, 1072521), (27, 794460), (30, 715014), (36, 595845), (45, 476676), (54, 397230), (60, 357507), (81, 264820), (90, 238338), (108, 198615), (135, 158892), (162, 132410), (180, 119169), (270, 79446), (324, 66205), (405, 52964), (540, 39723), (810, 26482), (1620, 13241)]