21708252

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{449}}^1$

素因数の和:555

約数の個数: 72

約数和(自身を含む): 58968000

約数和(自身を除く): 37259748

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 79, 102, 153, 158, 204, 237, 306, 316, 449, 474, 612, 711, 898, 948, 1343, 1347, 1422, 1796, 2686, 2694, 2844, 4029, 4041, 5372, 5388, 7633, 8058, 8082, 12087, 15266, 16116, 16164, 22899, 24174, 30532, 35471, 45798, 48348, 68697, 70942, 91596, 106413, 137394, 141884, 212826, 274788, 319239, 425652, 603007, 638478, 1206014, 1276956, 1809021, 2412028, 3618042, 5427063, 7236084, 10854126, 21708252]

約数ペア:

[(1, 21708252), (2, 10854126), (3, 7236084), (4, 5427063), (6, 3618042), (9, 2412028), (12, 1809021), (17, 1276956), (18, 1206014), (34, 638478), (36, 603007), (51, 425652), (68, 319239), (79, 274788), (102, 212826), (153, 141884), (158, 137394), (204, 106413), (237, 91596), (306, 70942), (316, 68697), (449, 48348), (474, 45798), (612, 35471), (711, 30532), (898, 24174), (948, 22899), (1343, 16164), (1347, 16116), (1422, 15266), (1796, 12087), (2686, 8082), (2694, 8058), (2844, 7633), (4029, 5388), (4041, 5372)]