21450845

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{631}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 27818112

約数和(自身を除く): 6367267

約数列:

[1, 5, 13, 65, 523, 631, 2615, 3155, 6799, 8203, 33995, 41015, 330013, 1650065, 4290169, 21450845]

約数ペア:

[(1, 21450845), (5, 4290169), (13, 1650065), (65, 330013), (523, 41015), (631, 33995), (2615, 8203), (3155, 6799)]