21628208

素因数分解:

$2^4\times 7^4\times {\mathrm{563}}^1$

素因数の和:599

約数の個数: 50

約数和(自身を含む): 48972684

約数和(自身を除く): 27344476

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 563, 686, 784, 1126, 1372, 2252, 2401, 2744, 3941, 4504, 4802, 5488, 7882, 9008, 9604, 15764, 19208, 27587, 31528, 38416, 55174, 63056, 110348, 193109, 220696, 386218, 441392, 772436, 1351763, 1544872, 2703526, 3089744, 5407052, 10814104, 21628208]

約数ペア:

[(1, 21628208), (2, 10814104), (4, 5407052), (7, 3089744), (8, 2703526), (14, 1544872), (16, 1351763), (28, 772436), (49, 441392), (56, 386218), (98, 220696), (112, 193109), (196, 110348), (343, 63056), (392, 55174), (563, 38416), (686, 31528), (784, 27587), (1126, 19208), (1372, 15764), (2252, 9604), (2401, 9008), (2744, 7882), (3941, 5488), (4504, 4802)]