21806862

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{613}}^1$

素因数の和:654

約数の個数: 72

約数和(自身を含む): 55856808

約数和(自身を除く): 34049946

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 77, 98, 121, 147, 154, 231, 242, 294, 363, 462, 539, 613, 726, 847, 1078, 1226, 1617, 1694, 1839, 2541, 3234, 3678, 4291, 5082, 5929, 6743, 8582, 11858, 12873, 13486, 17787, 20229, 25746, 30037, 35574, 40458, 47201, 60074, 74173, 90111, 94402, 141603, 148346, 180222, 222519, 283206, 330407, 445038, 519211, 660814, 991221, 1038422, 1557633, 1982442, 3115266, 3634477, 7268954, 10903431, 21806862]

約数ペア:

[(1, 21806862), (2, 10903431), (3, 7268954), (6, 3634477), (7, 3115266), (11, 1982442), (14, 1557633), (21, 1038422), (22, 991221), (33, 660814), (42, 519211), (49, 445038), (66, 330407), (77, 283206), (98, 222519), (121, 180222), (147, 148346), (154, 141603), (231, 94402), (242, 90111), (294, 74173), (363, 60074), (462, 47201), (539, 40458), (613, 35574), (726, 30037), (847, 25746), (1078, 20229), (1226, 17787), (1617, 13486), (1694, 12873), (1839, 11858), (2541, 8582), (3234, 6743), (3678, 5929), (4291, 5082)]