20661096

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:538

約数の個数: 64

約数和(自身を含む): 54172800

約数和(自身を除く): 33511704

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 53, 74, 106, 111, 148, 159, 212, 222, 296, 318, 424, 439, 444, 636, 878, 888, 1272, 1317, 1756, 1961, 2634, 3512, 3922, 5268, 5883, 7844, 10536, 11766, 15688, 16243, 23267, 23532, 32486, 46534, 47064, 48729, 64972, 69801, 93068, 97458, 129944, 139602, 186136, 194916, 279204, 389832, 558408, 860879, 1721758, 2582637, 3443516, 5165274, 6887032, 10330548, 20661096]

約数ペア:

[(1, 20661096), (2, 10330548), (3, 6887032), (4, 5165274), (6, 3443516), (8, 2582637), (12, 1721758), (24, 860879), (37, 558408), (53, 389832), (74, 279204), (106, 194916), (111, 186136), (148, 139602), (159, 129944), (212, 97458), (222, 93068), (296, 69801), (318, 64972), (424, 48729), (439, 47064), (444, 46534), (636, 32486), (878, 23532), (888, 23267), (1272, 16243), (1317, 15688), (1756, 11766), (1961, 10536), (2634, 7844), (3512, 5883), (3922, 5268)]