31082751

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 55987200

約数和(自身を除く): 24904449

約数列:

[1, 3, 7, 9, 21, 27, 29, 53, 63, 87, 107, 159, 189, 203, 261, 321, 371, 477, 609, 749, 783, 963, 1113, 1431, 1537, 1827, 2247, 2889, 3103, 3339, 4611, 5481, 5671, 6741, 9309, 10017, 10759, 13833, 17013, 20223, 21721, 27927, 32277, 39697, 41499, 51039, 65163, 83781, 96831, 119091, 153117, 164459, 195489, 290493, 357273, 493377, 586467, 1071819, 1151213, 1480131, 3453639, 4440393, 10360917, 31082751]

約数ペア:

[(1, 31082751), (3, 10360917), (7, 4440393), (9, 3453639), (21, 1480131), (27, 1151213), (29, 1071819), (53, 586467), (63, 493377), (87, 357273), (107, 290493), (159, 195489), (189, 164459), (203, 153117), (261, 119091), (321, 96831), (371, 83781), (477, 65163), (609, 51039), (749, 41499), (783, 39697), (963, 32277), (1113, 27927), (1431, 21721), (1537, 20223), (1827, 17013), (2247, 13833), (2889, 10759), (3103, 10017), (3339, 9309), (4611, 6741), (5481, 5671)]