21019464

素因数分解:

$2^3\times 3^2\times {\mathrm{443}}^1\times {\mathrm{659}}^1$

素因数の和:1114

約数の個数: 48

約数和(自身を含む): 57142800

約数和(自身を除く): 36123336

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 443, 659, 886, 1318, 1329, 1772, 1977, 2636, 2658, 3544, 3954, 3987, 5272, 5316, 5931, 7908, 7974, 10632, 11862, 15816, 15948, 23724, 31896, 47448, 291937, 583874, 875811, 1167748, 1751622, 2335496, 2627433, 3503244, 5254866, 7006488, 10509732, 21019464]

約数ペア:

[(1, 21019464), (2, 10509732), (3, 7006488), (4, 5254866), (6, 3503244), (8, 2627433), (9, 2335496), (12, 1751622), (18, 1167748), (24, 875811), (36, 583874), (72, 291937), (443, 47448), (659, 31896), (886, 23724), (1318, 15948), (1329, 15816), (1772, 11862), (1977, 10632), (2636, 7974), (2658, 7908), (3544, 5931), (3954, 5316), (3987, 5272)]