21101955

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{200971}}^1$

素因数の和:200986

約数の個数: 16

約数和(自身を含む): 38586624

約数和(自身を除く): 17484669

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 200971, 602913, 1004855, 1406797, 3014565, 4220391, 7033985, 21101955]

約数ペア:

[(1, 21101955), (3, 7033985), (5, 4220391), (7, 3014565), (15, 1406797), (21, 1004855), (35, 602913), (105, 200971)]