21818172

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{659}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 53222400

約数和(自身を除く): 31404228

約数列:

[1, 2, 3, 4, 6, 12, 31, 62, 89, 93, 124, 178, 186, 267, 356, 372, 534, 659, 1068, 1318, 1977, 2636, 2759, 3954, 5518, 7908, 8277, 11036, 16554, 20429, 33108, 40858, 58651, 61287, 81716, 117302, 122574, 175953, 234604, 245148, 351906, 703812, 1818181, 3636362, 5454543, 7272724, 10909086, 21818172]

約数ペア:

[(1, 21818172), (2, 10909086), (3, 7272724), (4, 5454543), (6, 3636362), (12, 1818181), (31, 703812), (62, 351906), (89, 245148), (93, 234604), (124, 175953), (178, 122574), (186, 117302), (267, 81716), (356, 61287), (372, 58651), (534, 40858), (659, 33108), (1068, 20429), (1318, 16554), (1977, 11036), (2636, 8277), (2759, 7908), (3954, 5518)]