21326820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5827}}^1$

素因数の和:5900

約数の個数: 48

約数和(自身を含む): 60704448

約数和(自身を除く): 39377628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 61, 122, 183, 244, 305, 366, 610, 732, 915, 1220, 1830, 3660, 5827, 11654, 17481, 23308, 29135, 34962, 58270, 69924, 87405, 116540, 174810, 349620, 355447, 710894, 1066341, 1421788, 1777235, 2132682, 3554470, 4265364, 5331705, 7108940, 10663410, 21326820]

約数ペア:

[(1, 21326820), (2, 10663410), (3, 7108940), (4, 5331705), (5, 4265364), (6, 3554470), (10, 2132682), (12, 1777235), (15, 1421788), (20, 1066341), (30, 710894), (60, 355447), (61, 349620), (122, 174810), (183, 116540), (244, 87405), (305, 69924), (366, 58270), (610, 34962), (732, 29135), (915, 23308), (1220, 17481), (1830, 11654), (3660, 5827)]