21000259995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9790331}}^1$

素因数の和:9790363

約数の個数: 32

約数和(自身を含む): 39474618624

約数和(自身を除く): 18474358629

約数列:

[1, 3, 5, 11, 13, 15, 33, 39, 55, 65, 143, 165, 195, 429, 715, 2145, 9790331, 29370993, 48951655, 107693641, 127274303, 146854965, 323080923, 381822909, 538468205, 636371515, 1400017333, 1615404615, 1909114545, 4200051999, 7000086665, 21000259995]

約数ペア:

[(1, 21000259995), (3, 7000086665), (5, 4200051999), (11, 1909114545), (13, 1615404615), (15, 1400017333), (33, 636371515), (39, 538468205), (55, 381822909), (65, 323080923), (143, 146854965), (165, 127274303), (195, 107693641), (429, 48951655), (715, 29370993), (2145, 9790331)]