21620632

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 47491200

約数和(自身を除く): 25870568

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 67, 76, 88, 134, 152, 193, 209, 268, 386, 418, 536, 737, 772, 836, 1273, 1474, 1544, 1672, 2123, 2546, 2948, 3667, 4246, 5092, 5896, 7334, 8492, 10184, 12931, 14003, 14668, 16984, 25862, 28006, 29336, 40337, 51724, 56012, 80674, 103448, 112024, 142241, 161348, 245689, 284482, 322696, 491378, 568964, 982756, 1137928, 1965512, 2702579, 5405158, 10810316, 21620632]

約数ペア:

[(1, 21620632), (2, 10810316), (4, 5405158), (8, 2702579), (11, 1965512), (19, 1137928), (22, 982756), (38, 568964), (44, 491378), (67, 322696), (76, 284482), (88, 245689), (134, 161348), (152, 142241), (193, 112024), (209, 103448), (268, 80674), (386, 56012), (418, 51724), (536, 40337), (737, 29336), (772, 28006), (836, 25862), (1273, 16984), (1474, 14668), (1544, 14003), (1672, 12931), (2123, 10184), (2546, 8492), (2948, 7334), (3667, 5896), (4246, 5092)]