21488628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{733}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 57545600

約数和(自身を除く): 36056972

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 349, 698, 733, 1047, 1396, 1466, 2094, 2199, 2443, 2932, 4188, 4398, 4886, 5131, 7329, 8796, 9772, 10262, 14658, 15393, 20524, 29316, 30786, 61572, 255817, 511634, 767451, 1023268, 1534902, 1790719, 3069804, 3581438, 5372157, 7162876, 10744314, 21488628]

約数ペア:

[(1, 21488628), (2, 10744314), (3, 7162876), (4, 5372157), (6, 3581438), (7, 3069804), (12, 1790719), (14, 1534902), (21, 1023268), (28, 767451), (42, 511634), (84, 255817), (349, 61572), (698, 30786), (733, 29316), (1047, 20524), (1396, 15393), (1466, 14658), (2094, 10262), (2199, 9772), (2443, 8796), (2932, 7329), (4188, 5131), (4398, 4886)]