18643492

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:820

約数の個数: 48

約数和(自身を含む): 40279680

約数和(自身を除く): 21636188

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 53, 68, 106, 119, 212, 238, 371, 476, 739, 742, 901, 1478, 1484, 1802, 2956, 3604, 5173, 6307, 10346, 12563, 12614, 20692, 25126, 25228, 39167, 50252, 78334, 87941, 156668, 175882, 274169, 351764, 548338, 665839, 1096676, 1331678, 2663356, 4660873, 9321746, 18643492]

約数ペア:

[(1, 18643492), (2, 9321746), (4, 4660873), (7, 2663356), (14, 1331678), (17, 1096676), (28, 665839), (34, 548338), (53, 351764), (68, 274169), (106, 175882), (119, 156668), (212, 87941), (238, 78334), (371, 50252), (476, 39167), (739, 25228), (742, 25126), (901, 20692), (1478, 12614), (1484, 12563), (1802, 10346), (2956, 6307), (3604, 5173)]