21488508

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 56434560

約数和(自身を除く): 34946052

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 67, 118, 134, 151, 177, 201, 236, 268, 302, 354, 402, 453, 531, 603, 604, 708, 804, 906, 1062, 1206, 1359, 1812, 2124, 2412, 2718, 3953, 5436, 7906, 8909, 10117, 11859, 15812, 17818, 20234, 23718, 26727, 30351, 35577, 35636, 40468, 47436, 53454, 60702, 71154, 80181, 91053, 106908, 121404, 142308, 160362, 182106, 320724, 364212, 596903, 1193806, 1790709, 2387612, 3581418, 5372127, 7162836, 10744254, 21488508]

約数ペア:

[(1, 21488508), (2, 10744254), (3, 7162836), (4, 5372127), (6, 3581418), (9, 2387612), (12, 1790709), (18, 1193806), (36, 596903), (59, 364212), (67, 320724), (118, 182106), (134, 160362), (151, 142308), (177, 121404), (201, 106908), (236, 91053), (268, 80181), (302, 71154), (354, 60702), (402, 53454), (453, 47436), (531, 40468), (603, 35636), (604, 35577), (708, 30351), (804, 26727), (906, 23718), (1062, 20234), (1206, 17818), (1359, 15812), (1812, 11859), (2124, 10117), (2412, 8909), (2718, 7906), (3953, 5436)]