21650125

素因数分解:

$5^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:358

約数の個数: 32

約数和(自身を含む): 31299840

約数和(自身を除く): 9649715

約数列:

[1, 5, 7, 25, 35, 109, 125, 175, 227, 545, 763, 875, 1135, 1589, 2725, 3815, 5675, 7945, 13625, 19075, 24743, 28375, 39725, 95375, 123715, 173201, 198625, 618575, 866005, 3092875, 4330025, 21650125]

約数ペア:

[(1, 21650125), (5, 4330025), (7, 3092875), (25, 866005), (35, 618575), (109, 198625), (125, 173201), (175, 123715), (227, 95375), (545, 39725), (763, 28375), (875, 24743), (1135, 19075), (1589, 13625), (2725, 7945), (3815, 5675)]