21605336

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{1553}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 42517440

約数和(自身を除く): 20912104

約数列:

[1, 2, 4, 8, 37, 47, 74, 94, 148, 188, 296, 376, 1553, 1739, 3106, 3478, 6212, 6956, 12424, 13912, 57461, 72991, 114922, 145982, 229844, 291964, 459688, 583928, 2700667, 5401334, 10802668, 21605336]

約数ペア:

[(1, 21605336), (2, 10802668), (4, 5401334), (8, 2700667), (37, 583928), (47, 459688), (74, 291964), (94, 229844), (148, 145982), (188, 114922), (296, 72991), (376, 57461), (1553, 13912), (1739, 12424), (3106, 6956), (3478, 6212)]