21579008

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 48074880

約数和(自身を除く): 26495872

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 79, 88, 97, 128, 158, 176, 194, 256, 316, 352, 388, 632, 704, 776, 869, 1067, 1264, 1408, 1552, 1738, 2134, 2528, 2816, 3104, 3476, 4268, 5056, 6208, 6952, 7663, 8536, 10112, 12416, 13904, 15326, 17072, 20224, 24832, 27808, 30652, 34144, 55616, 61304, 68288, 84293, 111232, 122608, 136576, 168586, 222464, 245216, 273152, 337172, 490432, 674344, 980864, 1348688, 1961728, 2697376, 5394752, 10789504, 21579008]

約数ペア:

[(1, 21579008), (2, 10789504), (4, 5394752), (8, 2697376), (11, 1961728), (16, 1348688), (22, 980864), (32, 674344), (44, 490432), (64, 337172), (79, 273152), (88, 245216), (97, 222464), (128, 168586), (158, 136576), (176, 122608), (194, 111232), (256, 84293), (316, 68288), (352, 61304), (388, 55616), (632, 34144), (704, 30652), (776, 27808), (869, 24832), (1067, 20224), (1264, 17072), (1408, 15326), (1552, 13904), (1738, 12416), (2134, 10112), (2528, 8536), (2816, 7663), (3104, 6952), (3476, 6208), (4268, 5056)]