20951718

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{569}}^1$

素因数の和:629

約数の個数: 48

約数和(自身を含む): 46908720

約数和(自身を除く): 25957002

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 51, 57, 102, 114, 323, 361, 569, 646, 722, 969, 1083, 1138, 1707, 1938, 2166, 3414, 6137, 9673, 10811, 12274, 18411, 19346, 21622, 29019, 32433, 36822, 58038, 64866, 183787, 205409, 367574, 410818, 551361, 616227, 1102722, 1232454, 3491953, 6983906, 10475859, 20951718]

約数ペア:

[(1, 20951718), (2, 10475859), (3, 6983906), (6, 3491953), (17, 1232454), (19, 1102722), (34, 616227), (38, 551361), (51, 410818), (57, 367574), (102, 205409), (114, 183787), (323, 64866), (361, 58038), (569, 36822), (646, 32433), (722, 29019), (969, 21622), (1083, 19346), (1138, 18411), (1707, 12274), (1938, 10811), (2166, 9673), (3414, 6137)]