21396584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 25605016

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 67, 76, 88, 134, 152, 191, 209, 268, 382, 418, 536, 737, 764, 836, 1273, 1474, 1528, 1672, 2101, 2546, 2948, 3629, 4202, 5092, 5896, 7258, 8404, 10184, 12797, 14003, 14516, 16808, 25594, 28006, 29032, 39919, 51188, 56012, 79838, 102376, 112024, 140767, 159676, 243143, 281534, 319352, 486286, 563068, 972572, 1126136, 1945144, 2674573, 5349146, 10698292, 21396584]

約数ペア:

[(1, 21396584), (2, 10698292), (4, 5349146), (8, 2674573), (11, 1945144), (19, 1126136), (22, 972572), (38, 563068), (44, 486286), (67, 319352), (76, 281534), (88, 243143), (134, 159676), (152, 140767), (191, 112024), (209, 102376), (268, 79838), (382, 56012), (418, 51188), (536, 39919), (737, 29032), (764, 28006), (836, 25594), (1273, 16808), (1474, 14516), (1528, 14003), (1672, 12797), (2101, 10184), (2546, 8404), (2948, 7258), (3629, 5896), (4202, 5092)]