19995012

素因数分解:

$2^2\times 3^6\times {\mathrm{6857}}^1$

素因数の和:6879

約数の個数: 42

約数和(自身を含む): 52470558

約数和(自身を除く): 32475546

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2916, 6857, 13714, 20571, 27428, 41142, 61713, 82284, 123426, 185139, 246852, 370278, 555417, 740556, 1110834, 1666251, 2221668, 3332502, 4998753, 6665004, 9997506, 19995012]

約数ペア:

[(1, 19995012), (2, 9997506), (3, 6665004), (4, 4998753), (6, 3332502), (9, 2221668), (12, 1666251), (18, 1110834), (27, 740556), (36, 555417), (54, 370278), (81, 246852), (108, 185139), (162, 123426), (243, 82284), (324, 61713), (486, 41142), (729, 27428), (972, 20571), (1458, 13714), (2916, 6857)]