21645864

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^1\times {\mathrm{15823}}^1$

素因数の和:15854

約数の個数: 48

約数和(自身を含む): 61713600

約数和(自身を除く): 40067736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 456, 684, 1368, 15823, 31646, 47469, 63292, 94938, 126584, 142407, 189876, 284814, 300637, 379752, 569628, 601274, 901911, 1139256, 1202548, 1803822, 2405096, 2705733, 3607644, 5411466, 7215288, 10822932, 21645864]

約数ペア:

[(1, 21645864), (2, 10822932), (3, 7215288), (4, 5411466), (6, 3607644), (8, 2705733), (9, 2405096), (12, 1803822), (18, 1202548), (19, 1139256), (24, 901911), (36, 601274), (38, 569628), (57, 379752), (72, 300637), (76, 284814), (114, 189876), (152, 142407), (171, 126584), (228, 94938), (342, 63292), (456, 47469), (684, 31646), (1368, 15823)]