21013122

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:124

約数の個数: 96

約数和(自身を含む): 51228288

約数和(自身を除く): 30215166

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 34, 39, 46, 51, 53, 69, 78, 102, 106, 138, 159, 169, 221, 299, 318, 338, 391, 442, 507, 598, 663, 689, 782, 897, 901, 1014, 1173, 1219, 1326, 1378, 1794, 1802, 2067, 2346, 2438, 2703, 2873, 3657, 3887, 4134, 5083, 5406, 5746, 7314, 7774, 8619, 8957, 10166, 11661, 11713, 15249, 15847, 17238, 17914, 20723, 23322, 23426, 26871, 30498, 31694, 35139, 41446, 47541, 53742, 62169, 66079, 70278, 95082, 124338, 132158, 152269, 198237, 206011, 269399, 304538, 396474, 412022, 456807, 538798, 618033, 808197, 913614, 1236066, 1616394, 3502187, 7004374, 10506561, 21013122]

約数ペア:

[(1, 21013122), (2, 10506561), (3, 7004374), (6, 3502187), (13, 1616394), (17, 1236066), (23, 913614), (26, 808197), (34, 618033), (39, 538798), (46, 456807), (51, 412022), (53, 396474), (69, 304538), (78, 269399), (102, 206011), (106, 198237), (138, 152269), (159, 132158), (169, 124338), (221, 95082), (299, 70278), (318, 66079), (338, 62169), (391, 53742), (442, 47541), (507, 41446), (598, 35139), (663, 31694), (689, 30498), (782, 26871), (897, 23426), (901, 23322), (1014, 20723), (1173, 17914), (1219, 17238), (1326, 15847), (1378, 15249), (1794, 11713), (1802, 11661), (2067, 10166), (2346, 8957), (2438, 8619), (2703, 7774), (2873, 7314), (3657, 5746), (3887, 5406), (4134, 5083)]