21766920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25913}}^1$

素因数の和:25934

約数の個数: 64

約数和(自身を含む): 74632320

約数和(自身を除く): 52865400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 25913, 51826, 77739, 103652, 129565, 155478, 181391, 207304, 259130, 310956, 362782, 388695, 518260, 544173, 621912, 725564, 777390, 906955, 1036520, 1088346, 1451128, 1554780, 1813910, 2176692, 2720865, 3109560, 3627820, 4353384, 5441730, 7255640, 10883460, 21766920]

約数ペア:

[(1, 21766920), (2, 10883460), (3, 7255640), (4, 5441730), (5, 4353384), (6, 3627820), (7, 3109560), (8, 2720865), (10, 2176692), (12, 1813910), (14, 1554780), (15, 1451128), (20, 1088346), (21, 1036520), (24, 906955), (28, 777390), (30, 725564), (35, 621912), (40, 544173), (42, 518260), (56, 388695), (60, 362782), (70, 310956), (84, 259130), (105, 207304), (120, 181391), (140, 155478), (168, 129565), (210, 103652), (280, 77739), (420, 51826), (840, 25913)]