20321868

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 41730612

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 19, 21, 28, 34, 38, 42, 49, 51, 57, 68, 76, 84, 98, 102, 107, 114, 119, 133, 147, 196, 204, 214, 228, 238, 266, 294, 321, 323, 357, 399, 428, 476, 532, 588, 642, 646, 714, 749, 798, 833, 931, 969, 1284, 1292, 1428, 1498, 1596, 1666, 1819, 1862, 1938, 2033, 2247, 2261, 2499, 2793, 2996, 3332, 3638, 3724, 3876, 4066, 4494, 4522, 4998, 5243, 5457, 5586, 6099, 6783, 7276, 8132, 8988, 9044, 9996, 10486, 10914, 11172, 12198, 12733, 13566, 14231, 15729, 15827, 20972, 21828, 24396, 25466, 27132, 28462, 31458, 31654, 34561, 38199, 42693, 47481, 50932, 56924, 62916, 63308, 69122, 76398, 85386, 89131, 94962, 99617, 103683, 138244, 152796, 170772, 178262, 189924, 199234, 207366, 241927, 267393, 298851, 356524, 398468, 414732, 483854, 534786, 597702, 725781, 967708, 1069572, 1195404, 1451562, 1693489, 2903124, 3386978, 5080467, 6773956, 10160934, 20321868]

約数ペア:

[(1, 20321868), (2, 10160934), (3, 6773956), (4, 5080467), (6, 3386978), (7, 2903124), (12, 1693489), (14, 1451562), (17, 1195404), (19, 1069572), (21, 967708), (28, 725781), (34, 597702), (38, 534786), (42, 483854), (49, 414732), (51, 398468), (57, 356524), (68, 298851), (76, 267393), (84, 241927), (98, 207366), (102, 199234), (107, 189924), (114, 178262), (119, 170772), (133, 152796), (147, 138244), (196, 103683), (204, 99617), (214, 94962), (228, 89131), (238, 85386), (266, 76398), (294, 69122), (321, 63308), (323, 62916), (357, 56924), (399, 50932), (428, 47481), (476, 42693), (532, 38199), (588, 34561), (642, 31654), (646, 31458), (714, 28462), (749, 27132), (798, 25466), (833, 24396), (931, 21828), (969, 20972), (1284, 15827), (1292, 15729), (1428, 14231), (1498, 13566), (1596, 12733), (1666, 12198), (1819, 11172), (1862, 10914), (1938, 10486), (2033, 9996), (2247, 9044), (2261, 8988), (2499, 8132), (2793, 7276), (2996, 6783), (3332, 6099), (3638, 5586), (3724, 5457), (3876, 5243), (4066, 4998), (4494, 4522)]