21911864

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{853}}^1$

素因数の和:904

約数の個数: 48

約数和(自身を含む): 46884600

約数和(自身を除く): 24972736

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 169, 247, 338, 494, 676, 853, 988, 1352, 1706, 1976, 3211, 3412, 6422, 6824, 11089, 12844, 16207, 22178, 25688, 32414, 44356, 64828, 88712, 129656, 144157, 210691, 288314, 421382, 576628, 842764, 1153256, 1685528, 2738983, 5477966, 10955932, 21911864]

約数ペア:

[(1, 21911864), (2, 10955932), (4, 5477966), (8, 2738983), (13, 1685528), (19, 1153256), (26, 842764), (38, 576628), (52, 421382), (76, 288314), (104, 210691), (152, 144157), (169, 129656), (247, 88712), (338, 64828), (494, 44356), (676, 32414), (853, 25688), (988, 22178), (1352, 16207), (1706, 12844), (1976, 11089), (3211, 6824), (3412, 6422)]