21644035

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{167}}^1$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 31773168

約数和(自身を除く): 10129133

約数列:

[1, 5, 7, 23, 35, 49, 115, 161, 167, 245, 529, 805, 835, 1127, 1169, 2645, 3703, 3841, 5635, 5845, 8183, 18515, 19205, 25921, 26887, 40915, 88343, 129605, 134435, 188209, 441715, 618401, 941045, 3092005, 4328807, 21644035]

約数ペア:

[(1, 21644035), (5, 4328807), (7, 3092005), (23, 941045), (35, 618401), (49, 441715), (115, 188209), (161, 134435), (167, 129605), (245, 88343), (529, 40915), (805, 26887), (835, 25921), (1127, 19205), (1169, 18515), (2645, 8183), (3703, 5845), (3841, 5635)]