20490372

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4783}}^1$

素因数の和:4817

約数の個数: 72

約数和(自身を含む): 62689536

約数和(自身を除く): 42199164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 34, 36, 42, 51, 63, 68, 84, 102, 119, 126, 153, 204, 238, 252, 306, 357, 476, 612, 714, 1071, 1428, 2142, 4284, 4783, 9566, 14349, 19132, 28698, 33481, 43047, 57396, 66962, 81311, 86094, 100443, 133924, 162622, 172188, 200886, 243933, 301329, 325244, 401772, 487866, 569177, 602658, 731799, 975732, 1138354, 1205316, 1463598, 1707531, 2276708, 2927196, 3415062, 5122593, 6830124, 10245186, 20490372]

約数ペア:

[(1, 20490372), (2, 10245186), (3, 6830124), (4, 5122593), (6, 3415062), (7, 2927196), (9, 2276708), (12, 1707531), (14, 1463598), (17, 1205316), (18, 1138354), (21, 975732), (28, 731799), (34, 602658), (36, 569177), (42, 487866), (51, 401772), (63, 325244), (68, 301329), (84, 243933), (102, 200886), (119, 172188), (126, 162622), (153, 133924), (204, 100443), (238, 86094), (252, 81311), (306, 66962), (357, 57396), (476, 43047), (612, 33481), (714, 28698), (1071, 19132), (1428, 14349), (2142, 9566), (4284, 4783)]