21891324

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20047}}^1$

素因数の和:20074

約数の個数: 48

約数和(自身を含む): 62870528

約数和(自身を除く): 40979204

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 156, 182, 273, 364, 546, 1092, 20047, 40094, 60141, 80188, 120282, 140329, 240564, 260611, 280658, 420987, 521222, 561316, 781833, 841974, 1042444, 1563666, 1683948, 1824277, 3127332, 3648554, 5472831, 7297108, 10945662, 21891324]

約数ペア:

[(1, 21891324), (2, 10945662), (3, 7297108), (4, 5472831), (6, 3648554), (7, 3127332), (12, 1824277), (13, 1683948), (14, 1563666), (21, 1042444), (26, 841974), (28, 781833), (39, 561316), (42, 521222), (52, 420987), (78, 280658), (84, 260611), (91, 240564), (156, 140329), (182, 120282), (273, 80188), (364, 60141), (546, 40094), (1092, 20047)]