20803239963

素因数分解:

$3^5\times {\mathrm{11}}^2\times {\mathrm{257}}^1\times {\mathrm{2753}}^1$

素因数の和:3047

約数の個数: 72

約数和(自身を含む): 34398275184

約数和(自身を除く): 13595035221

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 121, 243, 257, 297, 363, 771, 891, 1089, 2313, 2673, 2753, 2827, 3267, 6939, 8259, 8481, 9801, 20817, 24777, 25443, 29403, 30283, 31097, 62451, 74331, 76329, 90849, 93291, 222993, 228987, 272547, 279873, 333113, 668979, 686961, 707521, 817641, 839619, 999339, 2122563, 2452923, 2518857, 2998017, 6367689, 7358769, 7556571, 7782731, 8994051, 19103067, 23348193, 26982153, 57309201, 70044579, 80946459, 85610041, 171927603, 210133737, 256830123, 630401211, 770490369, 1891203633, 2311471107, 6934413321, 20803239963]

約数ペア:

[(1, 20803239963), (3, 6934413321), (9, 2311471107), (11, 1891203633), (27, 770490369), (33, 630401211), (81, 256830123), (99, 210133737), (121, 171927603), (243, 85610041), (257, 80946459), (297, 70044579), (363, 57309201), (771, 26982153), (891, 23348193), (1089, 19103067), (2313, 8994051), (2673, 7782731), (2753, 7556571), (2827, 7358769), (3267, 6367689), (6939, 2998017), (8259, 2518857), (8481, 2452923), (9801, 2122563), (20817, 999339), (24777, 839619), (25443, 817641), (29403, 707521), (30283, 686961), (31097, 668979), (62451, 333113), (74331, 279873), (76329, 272547), (90849, 228987), (93291, 222993)]