21144264

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{521}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 56376000

約数和(自身を除く): 35231736

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 89, 114, 152, 178, 228, 267, 356, 456, 521, 534, 712, 1042, 1068, 1563, 1691, 2084, 2136, 3126, 3382, 4168, 5073, 6252, 6764, 9899, 10146, 12504, 13528, 19798, 20292, 29697, 39596, 40584, 46369, 59394, 79192, 92738, 118788, 139107, 185476, 237576, 278214, 370952, 556428, 881011, 1112856, 1762022, 2643033, 3524044, 5286066, 7048088, 10572132, 21144264]

約数ペア:

[(1, 21144264), (2, 10572132), (3, 7048088), (4, 5286066), (6, 3524044), (8, 2643033), (12, 1762022), (19, 1112856), (24, 881011), (38, 556428), (57, 370952), (76, 278214), (89, 237576), (114, 185476), (152, 139107), (178, 118788), (228, 92738), (267, 79192), (356, 59394), (456, 46369), (521, 40584), (534, 39596), (712, 29697), (1042, 20292), (1068, 19798), (1563, 13528), (1691, 12504), (2084, 10146), (2136, 9899), (3126, 6764), (3382, 6252), (4168, 5073)]