21375960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{3361}}^1$

素因数の和:3428

約数の個数: 64

約数和(自身を含む): 65357280

約数和(自身を除く): 43981320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 53, 60, 106, 120, 159, 212, 265, 318, 424, 530, 636, 795, 1060, 1272, 1590, 2120, 3180, 3361, 6360, 6722, 10083, 13444, 16805, 20166, 26888, 33610, 40332, 50415, 67220, 80664, 100830, 134440, 178133, 201660, 356266, 403320, 534399, 712532, 890665, 1068798, 1425064, 1781330, 2137596, 2671995, 3562660, 4275192, 5343990, 7125320, 10687980, 21375960]

約数ペア:

[(1, 21375960), (2, 10687980), (3, 7125320), (4, 5343990), (5, 4275192), (6, 3562660), (8, 2671995), (10, 2137596), (12, 1781330), (15, 1425064), (20, 1068798), (24, 890665), (30, 712532), (40, 534399), (53, 403320), (60, 356266), (106, 201660), (120, 178133), (159, 134440), (212, 100830), (265, 80664), (318, 67220), (424, 50415), (530, 40332), (636, 33610), (795, 26888), (1060, 20166), (1272, 16805), (1590, 13444), (2120, 10083), (3180, 6722), (3361, 6360)]