20988744

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7349}}^1$

素因数の和:7382

約数の個数: 64

約数和(自身を含む): 63504000

約数和(自身を除く): 42515256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856, 7349, 14698, 22047, 29396, 44094, 51443, 58792, 88188, 102886, 124933, 154329, 176376, 205772, 249866, 308658, 374799, 411544, 499732, 617316, 749598, 874531, 999464, 1234632, 1499196, 1749062, 2623593, 2998392, 3498124, 5247186, 6996248, 10494372, 20988744]

約数ペア:

[(1, 20988744), (2, 10494372), (3, 6996248), (4, 5247186), (6, 3498124), (7, 2998392), (8, 2623593), (12, 1749062), (14, 1499196), (17, 1234632), (21, 999464), (24, 874531), (28, 749598), (34, 617316), (42, 499732), (51, 411544), (56, 374799), (68, 308658), (84, 249866), (102, 205772), (119, 176376), (136, 154329), (168, 124933), (204, 102886), (238, 88188), (357, 58792), (408, 51443), (476, 44094), (714, 29396), (952, 22047), (1428, 14698), (2856, 7349)]