20897032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2999}}^1$

素因数の和:3085

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 21942968

約数列:

[1, 2, 4, 8, 13, 26, 52, 67, 104, 134, 268, 536, 871, 1742, 2999, 3484, 5998, 6968, 11996, 23992, 38987, 77974, 155948, 200933, 311896, 401866, 803732, 1607464, 2612129, 5224258, 10448516, 20897032]

約数ペア:

[(1, 20897032), (2, 10448516), (4, 5224258), (8, 2612129), (13, 1607464), (26, 803732), (52, 401866), (67, 311896), (104, 200933), (134, 155948), (268, 77974), (536, 38987), (871, 23992), (1742, 11996), (2999, 6968), (3484, 5998)]