20998572

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 60211200

約数和(自身を除く): 39212628

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 59, 76, 84, 114, 118, 133, 177, 223, 228, 236, 266, 354, 399, 413, 446, 532, 669, 708, 798, 826, 892, 1121, 1239, 1338, 1561, 1596, 1652, 2242, 2478, 2676, 3122, 3363, 4237, 4484, 4683, 4956, 6244, 6726, 7847, 8474, 9366, 12711, 13157, 13452, 15694, 16948, 18732, 23541, 25422, 26314, 29659, 31388, 39471, 47082, 50844, 52628, 59318, 78942, 88977, 92099, 94164, 118636, 157884, 177954, 184198, 249983, 276297, 355908, 368396, 499966, 552594, 749949, 999932, 1105188, 1499898, 1749881, 2999796, 3499762, 5249643, 6999524, 10499286, 20998572]

約数ペア:

[(1, 20998572), (2, 10499286), (3, 6999524), (4, 5249643), (6, 3499762), (7, 2999796), (12, 1749881), (14, 1499898), (19, 1105188), (21, 999932), (28, 749949), (38, 552594), (42, 499966), (57, 368396), (59, 355908), (76, 276297), (84, 249983), (114, 184198), (118, 177954), (133, 157884), (177, 118636), (223, 94164), (228, 92099), (236, 88977), (266, 78942), (354, 59318), (399, 52628), (413, 50844), (446, 47082), (532, 39471), (669, 31388), (708, 29659), (798, 26314), (826, 25422), (892, 23541), (1121, 18732), (1239, 16948), (1338, 15694), (1561, 13452), (1596, 13157), (1652, 12711), (2242, 9366), (2478, 8474), (2676, 7847), (3122, 6726), (3363, 6244), (4237, 4956), (4484, 4683)]