21403728

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{7823}}^1$

素因数の和:7856

約数の個数: 60

約数和(自身を含む): 63061440

約数和(自身を除く): 41657712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 144, 152, 171, 228, 304, 342, 456, 684, 912, 1368, 2736, 7823, 15646, 23469, 31292, 46938, 62584, 70407, 93876, 125168, 140814, 148637, 187752, 281628, 297274, 375504, 445911, 563256, 594548, 891822, 1126512, 1189096, 1337733, 1783644, 2378192, 2675466, 3567288, 5350932, 7134576, 10701864, 21403728]

約数ペア:

[(1, 21403728), (2, 10701864), (3, 7134576), (4, 5350932), (6, 3567288), (8, 2675466), (9, 2378192), (12, 1783644), (16, 1337733), (18, 1189096), (19, 1126512), (24, 891822), (36, 594548), (38, 563256), (48, 445911), (57, 375504), (72, 297274), (76, 281628), (114, 187752), (144, 148637), (152, 140814), (171, 125168), (228, 93876), (304, 70407), (342, 62584), (456, 46938), (684, 31292), (912, 23469), (1368, 15646), (2736, 7823)]