28919223

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{167}}^1\times {\mathrm{271}}^1$

素因数の和:515

約数の個数: 24

約数和(自身を含む): 42771456

約数和(自身を除く): 13852233

約数列:

[1, 3, 9, 71, 167, 213, 271, 501, 639, 813, 1503, 2439, 11857, 19241, 35571, 45257, 57723, 106713, 135771, 173169, 407313, 3213247, 9639741, 28919223]

約数ペア:

[(1, 28919223), (3, 9639741), (9, 3213247), (71, 407313), (167, 173169), (213, 135771), (271, 106713), (501, 57723), (639, 45257), (813, 35571), (1503, 19241), (2439, 11857)]