21322952

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 26940088

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 41, 56, 74, 82, 148, 164, 251, 259, 287, 296, 328, 502, 518, 574, 1004, 1036, 1148, 1517, 1757, 2008, 2072, 2296, 3034, 3514, 6068, 7028, 9287, 10291, 10619, 12136, 14056, 18574, 20582, 21238, 37148, 41164, 42476, 65009, 72037, 74296, 82328, 84952, 130018, 144074, 260036, 288148, 380767, 520072, 576296, 761534, 1523068, 2665369, 3046136, 5330738, 10661476, 21322952]

約数ペア:

[(1, 21322952), (2, 10661476), (4, 5330738), (7, 3046136), (8, 2665369), (14, 1523068), (28, 761534), (37, 576296), (41, 520072), (56, 380767), (74, 288148), (82, 260036), (148, 144074), (164, 130018), (251, 84952), (259, 82328), (287, 74296), (296, 72037), (328, 65009), (502, 42476), (518, 41164), (574, 37148), (1004, 21238), (1036, 20582), (1148, 18574), (1517, 14056), (1757, 12136), (2008, 10619), (2072, 10291), (2296, 9287), (3034, 7028), (3514, 6068)]