21187410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 52641792

約数和(自身を除く): 31454382

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 67, 83, 127, 134, 166, 201, 249, 254, 335, 381, 402, 415, 498, 635, 670, 762, 830, 1005, 1245, 1270, 1905, 2010, 2490, 3810, 5561, 8509, 10541, 11122, 16683, 17018, 21082, 25527, 27805, 31623, 33366, 42545, 51054, 52705, 55610, 63246, 83415, 85090, 105410, 127635, 158115, 166830, 255270, 316230, 706247, 1412494, 2118741, 3531235, 4237482, 7062470, 10593705, 21187410]

約数ペア:

[(1, 21187410), (2, 10593705), (3, 7062470), (5, 4237482), (6, 3531235), (10, 2118741), (15, 1412494), (30, 706247), (67, 316230), (83, 255270), (127, 166830), (134, 158115), (166, 127635), (201, 105410), (249, 85090), (254, 83415), (335, 63246), (381, 55610), (402, 52705), (415, 51054), (498, 42545), (635, 33366), (670, 31623), (762, 27805), (830, 25527), (1005, 21082), (1245, 17018), (1270, 16683), (1905, 11122), (2010, 10541), (2490, 8509), (3810, 5561)]