21345642

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{883}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 49645440

約数和(自身を除く): 28299798

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 79, 102, 153, 158, 237, 306, 474, 711, 883, 1343, 1422, 1766, 2649, 2686, 4029, 5298, 7947, 8058, 12087, 15011, 15894, 24174, 30022, 45033, 69757, 90066, 135099, 139514, 209271, 270198, 418542, 627813, 1185869, 1255626, 2371738, 3557607, 7115214, 10672821, 21345642]

約数ペア:

[(1, 21345642), (2, 10672821), (3, 7115214), (6, 3557607), (9, 2371738), (17, 1255626), (18, 1185869), (34, 627813), (51, 418542), (79, 270198), (102, 209271), (153, 139514), (158, 135099), (237, 90066), (306, 69757), (474, 45033), (711, 30022), (883, 24174), (1343, 15894), (1422, 15011), (1766, 12087), (2649, 8058), (2686, 7947), (4029, 5298)]