21566142

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1046

約数の個数: 64

約数和(自身を含む): 53329920

約数和(自身を除く): 31763778

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 93, 117, 186, 234, 279, 351, 403, 558, 702, 806, 837, 991, 1209, 1674, 1982, 2418, 2973, 3627, 5946, 7254, 8919, 10881, 12883, 17838, 21762, 25766, 26757, 30721, 38649, 53514, 61442, 77298, 92163, 115947, 184326, 231894, 276489, 347841, 399373, 552978, 695682, 798746, 829467, 1198119, 1658934, 2396238, 3594357, 7188714, 10783071, 21566142]

約数ペア:

[(1, 21566142), (2, 10783071), (3, 7188714), (6, 3594357), (9, 2396238), (13, 1658934), (18, 1198119), (26, 829467), (27, 798746), (31, 695682), (39, 552978), (54, 399373), (62, 347841), (78, 276489), (93, 231894), (117, 184326), (186, 115947), (234, 92163), (279, 77298), (351, 61442), (403, 53514), (558, 38649), (702, 30721), (806, 26757), (837, 25766), (991, 21762), (1209, 17838), (1674, 12883), (1982, 10881), (2418, 8919), (2973, 7254), (3627, 5946)]