21900130

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{5903}}^1$

素因数の和:5970

約数の個数: 32

約数和(自身を含む): 45909504

約数和(自身を除く): 24009374

約数列:

[1, 2, 5, 7, 10, 14, 35, 53, 70, 106, 265, 371, 530, 742, 1855, 3710, 5903, 11806, 29515, 41321, 59030, 82642, 206605, 312859, 413210, 625718, 1564295, 2190013, 3128590, 4380026, 10950065, 21900130]

約数ペア:

[(1, 21900130), (2, 10950065), (5, 4380026), (7, 3128590), (10, 2190013), (14, 1564295), (35, 625718), (53, 413210), (70, 312859), (106, 206605), (265, 82642), (371, 59030), (530, 41321), (742, 29515), (1855, 11806), (3710, 5903)]