21906248

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{30091}}^1$

素因数の和:30117

約数の個数: 32

約数和(自身を含む): 50554560

約数和(自身を除く): 28648312

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 30091, 60182, 120364, 210637, 240728, 391183, 421274, 782366, 842548, 1564732, 1685096, 2738281, 3129464, 5476562, 10953124, 21906248]

約数ペア:

[(1, 21906248), (2, 10953124), (4, 5476562), (7, 3129464), (8, 2738281), (13, 1685096), (14, 1564732), (26, 842548), (28, 782366), (52, 421274), (56, 391183), (91, 240728), (104, 210637), (182, 120364), (364, 60182), (728, 30091)]