21907496

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{673}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 44443560

約数和(自身を除く): 22536064

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 313, 626, 673, 1252, 1346, 2504, 2692, 4069, 5384, 8138, 8749, 16276, 17498, 32552, 34996, 69992, 210649, 421298, 842596, 1685192, 2738437, 5476874, 10953748, 21907496]

約数ペア:

[(1, 21907496), (2, 10953748), (4, 5476874), (8, 2738437), (13, 1685192), (26, 842596), (52, 421298), (104, 210649), (313, 69992), (626, 34996), (673, 32552), (1252, 17498), (1346, 16276), (2504, 8749), (2692, 8138), (4069, 5384)]