21221694

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1019}}^1$

素因数の和:1129

約数の個数: 48

約数和(自身を含む): 50122800

約数和(自身を除く): 28901106

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 89, 117, 178, 234, 267, 534, 801, 1019, 1157, 1602, 2038, 2314, 3057, 3471, 6114, 6942, 9171, 10413, 13247, 18342, 20826, 26494, 39741, 79482, 90691, 119223, 181382, 238446, 272073, 544146, 816219, 1178983, 1632438, 2357966, 3536949, 7073898, 10610847, 21221694]

約数ペア:

[(1, 21221694), (2, 10610847), (3, 7073898), (6, 3536949), (9, 2357966), (13, 1632438), (18, 1178983), (26, 816219), (39, 544146), (78, 272073), (89, 238446), (117, 181382), (178, 119223), (234, 90691), (267, 79482), (534, 39741), (801, 26494), (1019, 20826), (1157, 18342), (1602, 13247), (2038, 10413), (2314, 9171), (3057, 6942), (3471, 6114)]