19916932

素因数分解:

$2^2\times 7^2\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:656

約数の個数: 36

約数和(自身を含む): 40800144

約数和(自身を除く): 20883212

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 307, 331, 614, 662, 1228, 1324, 2149, 2317, 4298, 4634, 8596, 9268, 15043, 16219, 30086, 32438, 60172, 64876, 101617, 203234, 406468, 711319, 1422638, 2845276, 4979233, 9958466, 19916932]

約数ペア:

[(1, 19916932), (2, 9958466), (4, 4979233), (7, 2845276), (14, 1422638), (28, 711319), (49, 406468), (98, 203234), (196, 101617), (307, 64876), (331, 60172), (614, 32438), (662, 30086), (1228, 16219), (1324, 15043), (2149, 9268), (2317, 8596), (4298, 4634)]