19902225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{227}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 37997568

約数和(自身を除く): 18095343

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 167, 175, 227, 501, 525, 681, 835, 1135, 1169, 1589, 2505, 3405, 3507, 4175, 4767, 5675, 5845, 7945, 12525, 17025, 17535, 23835, 29225, 37909, 39725, 87675, 113727, 119175, 189545, 265363, 568635, 796089, 947725, 1326815, 2843175, 3980445, 6634075, 19902225]

約数ペア:

[(1, 19902225), (3, 6634075), (5, 3980445), (7, 2843175), (15, 1326815), (21, 947725), (25, 796089), (35, 568635), (75, 265363), (105, 189545), (167, 119175), (175, 113727), (227, 87675), (501, 39725), (525, 37909), (681, 29225), (835, 23835), (1135, 17535), (1169, 17025), (1589, 12525), (2505, 7945), (3405, 5845), (3507, 5675), (4175, 4767)]