21675008

素因数分解:

$2^{10}\times {\mathrm{61}}^1\times {\mathrm{347}}^1$

素因数の和:428

約数の個数: 44

約数和(自身を含む): 44166072

約数和(自身を除く): 22491064

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 347, 488, 512, 694, 976, 1024, 1388, 1952, 2776, 3904, 5552, 7808, 11104, 15616, 21167, 22208, 31232, 42334, 44416, 62464, 84668, 88832, 169336, 177664, 338672, 355328, 677344, 1354688, 2709376, 5418752, 10837504, 21675008]

約数ペア:

[(1, 21675008), (2, 10837504), (4, 5418752), (8, 2709376), (16, 1354688), (32, 677344), (61, 355328), (64, 338672), (122, 177664), (128, 169336), (244, 88832), (256, 84668), (347, 62464), (488, 44416), (512, 42334), (694, 31232), (976, 22208), (1024, 21167), (1388, 15616), (1952, 11104), (2776, 7808), (3904, 5552)]