21963904

素因数分解:

$2^7\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 46481400

約数和(自身を除く): 24517496

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 64, 97, 116, 122, 128, 194, 232, 244, 388, 464, 488, 776, 928, 976, 1552, 1769, 1856, 1952, 2813, 3104, 3538, 3712, 3904, 5626, 5917, 6208, 7076, 7808, 11252, 11834, 12416, 14152, 22504, 23668, 28304, 45008, 47336, 56608, 90016, 94672, 113216, 171593, 180032, 189344, 226432, 343186, 360064, 378688, 686372, 757376, 1372744, 2745488, 5490976, 10981952, 21963904]

約数ペア:

[(1, 21963904), (2, 10981952), (4, 5490976), (8, 2745488), (16, 1372744), (29, 757376), (32, 686372), (58, 378688), (61, 360064), (64, 343186), (97, 226432), (116, 189344), (122, 180032), (128, 171593), (194, 113216), (232, 94672), (244, 90016), (388, 56608), (464, 47336), (488, 45008), (776, 28304), (928, 23668), (976, 22504), (1552, 14152), (1769, 12416), (1856, 11834), (1952, 11252), (2813, 7808), (3104, 7076), (3538, 6208), (3712, 5917), (3904, 5626)]