18819804

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:642

約数の個数: 48

約数和(自身を含む): 46569600

約数和(自身を除く): 27749796

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 197, 228, 394, 419, 591, 788, 838, 1182, 1257, 1676, 2364, 2514, 3743, 5028, 7486, 7961, 11229, 14972, 15922, 22458, 23883, 31844, 44916, 47766, 82543, 95532, 165086, 247629, 330172, 495258, 990516, 1568317, 3136634, 4704951, 6273268, 9409902, 18819804]

約数ペア:

[(1, 18819804), (2, 9409902), (3, 6273268), (4, 4704951), (6, 3136634), (12, 1568317), (19, 990516), (38, 495258), (57, 330172), (76, 247629), (114, 165086), (197, 95532), (228, 82543), (394, 47766), (419, 44916), (591, 31844), (788, 23883), (838, 22458), (1182, 15922), (1257, 14972), (1676, 11229), (2364, 7961), (2514, 7486), (3743, 5028)]