21393174

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{829}}^1$

素因数の和:885

約数の個数: 64

約数和(自身を含む): 51632640

約数和(自身を除く): 30239466

約数列:

[1, 2, 3, 6, 11, 17, 22, 23, 33, 34, 46, 51, 66, 69, 102, 138, 187, 253, 374, 391, 506, 561, 759, 782, 829, 1122, 1173, 1518, 1658, 2346, 2487, 4301, 4974, 8602, 9119, 12903, 14093, 18238, 19067, 25806, 27357, 28186, 38134, 42279, 54714, 57201, 84558, 114402, 155023, 209737, 310046, 324139, 419474, 465069, 629211, 648278, 930138, 972417, 1258422, 1944834, 3565529, 7131058, 10696587, 21393174]

約数ペア:

[(1, 21393174), (2, 10696587), (3, 7131058), (6, 3565529), (11, 1944834), (17, 1258422), (22, 972417), (23, 930138), (33, 648278), (34, 629211), (46, 465069), (51, 419474), (66, 324139), (69, 310046), (102, 209737), (138, 155023), (187, 114402), (253, 84558), (374, 57201), (391, 54714), (506, 42279), (561, 38134), (759, 28186), (782, 27357), (829, 25806), (1122, 19067), (1173, 18238), (1518, 14093), (1658, 12903), (2346, 9119), (2487, 8602), (4301, 4974)]