21767768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:360

約数の個数: 64

約数和(自身を含む): 48038400

約数和(自身を除く): 26270632

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 152, 188, 209, 277, 376, 418, 517, 554, 836, 893, 1034, 1108, 1672, 1786, 2068, 2216, 3047, 3572, 4136, 5263, 6094, 7144, 9823, 10526, 12188, 13019, 19646, 21052, 24376, 26038, 39292, 42104, 52076, 57893, 78584, 104152, 115786, 143209, 231572, 247361, 286418, 463144, 494722, 572836, 989444, 1145672, 1978888, 2720971, 5441942, 10883884, 21767768]

約数ペア:

[(1, 21767768), (2, 10883884), (4, 5441942), (8, 2720971), (11, 1978888), (19, 1145672), (22, 989444), (38, 572836), (44, 494722), (47, 463144), (76, 286418), (88, 247361), (94, 231572), (152, 143209), (188, 115786), (209, 104152), (277, 78584), (376, 57893), (418, 52076), (517, 42104), (554, 39292), (836, 26038), (893, 24376), (1034, 21052), (1108, 19646), (1672, 13019), (1786, 12188), (2068, 10526), (2216, 9823), (3047, 7144), (3572, 6094), (4136, 5263)]