20498226

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1511}}^1$

素因数の和:1559

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31756494

約数列:

[1, 2, 3, 6, 7, 14, 17, 19, 21, 34, 38, 42, 51, 57, 102, 114, 119, 133, 238, 266, 323, 357, 399, 646, 714, 798, 969, 1511, 1938, 2261, 3022, 4522, 4533, 6783, 9066, 10577, 13566, 21154, 25687, 28709, 31731, 51374, 57418, 63462, 77061, 86127, 154122, 172254, 179809, 200963, 359618, 401926, 488053, 539427, 602889, 976106, 1078854, 1205778, 1464159, 2928318, 3416371, 6832742, 10249113, 20498226]

約数ペア:

[(1, 20498226), (2, 10249113), (3, 6832742), (6, 3416371), (7, 2928318), (14, 1464159), (17, 1205778), (19, 1078854), (21, 976106), (34, 602889), (38, 539427), (42, 488053), (51, 401926), (57, 359618), (102, 200963), (114, 179809), (119, 172254), (133, 154122), (238, 86127), (266, 77061), (323, 63462), (357, 57418), (399, 51374), (646, 31731), (714, 28709), (798, 25687), (969, 21154), (1511, 13566), (1938, 10577), (2261, 9066), (3022, 6783), (4522, 4533)]