21185648

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 60

約数和(自身を含む): 46705344

約数和(自身を除く): 25519696

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 121, 124, 176, 242, 248, 341, 353, 484, 496, 682, 706, 968, 1364, 1412, 1936, 2728, 2824, 3751, 3883, 5456, 5648, 7502, 7766, 10943, 15004, 15532, 21886, 30008, 31064, 42713, 43772, 60016, 62128, 85426, 87544, 120373, 170852, 175088, 240746, 341704, 481492, 683408, 962984, 1324103, 1925968, 2648206, 5296412, 10592824, 21185648]

約数ペア:

[(1, 21185648), (2, 10592824), (4, 5296412), (8, 2648206), (11, 1925968), (16, 1324103), (22, 962984), (31, 683408), (44, 481492), (62, 341704), (88, 240746), (121, 175088), (124, 170852), (176, 120373), (242, 87544), (248, 85426), (341, 62128), (353, 60016), (484, 43772), (496, 42713), (682, 31064), (706, 30008), (968, 21886), (1364, 15532), (1412, 15004), (1936, 10943), (2728, 7766), (2824, 7502), (3751, 5648), (3883, 5456)]