21215476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 41731200

約数和(自身を除く): 20515724

約数列:

[1, 2, 4, 19, 23, 38, 46, 53, 76, 92, 106, 212, 229, 437, 458, 874, 916, 1007, 1219, 1748, 2014, 2438, 4028, 4351, 4876, 5267, 8702, 10534, 12137, 17404, 21068, 23161, 24274, 46322, 48548, 92644, 100073, 200146, 230603, 279151, 400292, 461206, 558302, 922412, 1116604, 5303869, 10607738, 21215476]

約数ペア:

[(1, 21215476), (2, 10607738), (4, 5303869), (19, 1116604), (23, 922412), (38, 558302), (46, 461206), (53, 400292), (76, 279151), (92, 230603), (106, 200146), (212, 100073), (229, 92644), (437, 48548), (458, 46322), (874, 24274), (916, 23161), (1007, 21068), (1219, 17404), (1748, 12137), (2014, 10534), (2438, 8702), (4028, 5267), (4351, 4876)]