21489901076

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{302999}}^1$

素因数の和:303176

約数の個数: 48

約数和(自身を含む): 45813600000

約数和(自身を除く): 24323698924

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 149, 238, 298, 476, 596, 1043, 2086, 2533, 4172, 5066, 10132, 17731, 35462, 70924, 302999, 605998, 1211996, 2120993, 4241986, 5150983, 8483972, 10301966, 20603932, 36056881, 45146851, 72113762, 90293702, 144227524, 180587404, 316027957, 632055914, 767496467, 1264111828, 1534992934, 3069985868, 5372475269, 10744950538, 21489901076]

約数ペア:

[(1, 21489901076), (2, 10744950538), (4, 5372475269), (7, 3069985868), (14, 1534992934), (17, 1264111828), (28, 767496467), (34, 632055914), (68, 316027957), (119, 180587404), (149, 144227524), (238, 90293702), (298, 72113762), (476, 45146851), (596, 36056881), (1043, 20603932), (2086, 10301966), (2533, 8483972), (4172, 5150983), (5066, 4241986), (10132, 2120993), (17731, 1211996), (35462, 605998), (70924, 302999)]