21446820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6271}}^1$

素因数の和:6305

約数の個数: 72

約数和(自身を含む): 68490240

約数和(自身を除く): 47043420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6271, 12542, 18813, 25084, 31355, 37626, 56439, 62710, 75252, 94065, 112878, 119149, 125420, 188130, 225756, 238298, 282195, 357447, 376260, 476596, 564390, 595745, 714894, 1072341, 1128780, 1191490, 1429788, 1787235, 2144682, 2382980, 3574470, 4289364, 5361705, 7148940, 10723410, 21446820]

約数ペア:

[(1, 21446820), (2, 10723410), (3, 7148940), (4, 5361705), (5, 4289364), (6, 3574470), (9, 2382980), (10, 2144682), (12, 1787235), (15, 1429788), (18, 1191490), (19, 1128780), (20, 1072341), (30, 714894), (36, 595745), (38, 564390), (45, 476596), (57, 376260), (60, 357447), (76, 282195), (90, 238298), (95, 225756), (114, 188130), (171, 125420), (180, 119149), (190, 112878), (228, 94065), (285, 75252), (342, 62710), (380, 56439), (570, 37626), (684, 31355), (855, 25084), (1140, 18813), (1710, 12542), (3420, 6271)]