21311628

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2039}}^1$

素因数の和:2126

約数の個数: 48

約数和(自身を含む): 54378240

約数和(自身を除く): 33066612

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 67, 78, 134, 156, 201, 268, 402, 804, 871, 1742, 2039, 2613, 3484, 4078, 5226, 6117, 8156, 10452, 12234, 24468, 26507, 53014, 79521, 106028, 136613, 159042, 273226, 318084, 409839, 546452, 819678, 1639356, 1775969, 3551938, 5327907, 7103876, 10655814, 21311628]

約数ペア:

[(1, 21311628), (2, 10655814), (3, 7103876), (4, 5327907), (6, 3551938), (12, 1775969), (13, 1639356), (26, 819678), (39, 546452), (52, 409839), (67, 318084), (78, 273226), (134, 159042), (156, 136613), (201, 106028), (268, 79521), (402, 53014), (804, 26507), (871, 24468), (1742, 12234), (2039, 10452), (2613, 8156), (3484, 6117), (4078, 5226)]