21057030

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{467}}^1$

素因数の和:650

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 35552250

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 167, 270, 334, 467, 501, 835, 934, 1002, 1401, 1503, 1670, 2335, 2505, 2802, 3006, 4203, 4509, 4670, 5010, 7005, 7515, 8406, 9018, 12609, 14010, 15030, 21015, 22545, 25218, 42030, 45090, 63045, 77989, 126090, 155978, 233967, 389945, 467934, 701901, 779890, 1169835, 1403802, 2105703, 2339670, 3509505, 4211406, 7019010, 10528515, 21057030]

約数ペア:

[(1, 21057030), (2, 10528515), (3, 7019010), (5, 4211406), (6, 3509505), (9, 2339670), (10, 2105703), (15, 1403802), (18, 1169835), (27, 779890), (30, 701901), (45, 467934), (54, 389945), (90, 233967), (135, 155978), (167, 126090), (270, 77989), (334, 63045), (467, 45090), (501, 42030), (835, 25218), (934, 22545), (1002, 21015), (1401, 15030), (1503, 14010), (1670, 12609), (2335, 9018), (2505, 8406), (2802, 7515), (3006, 7005), (4203, 5010), (4509, 4670)]