21448084

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 47659752

約数和(自身を除く): 26211668

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 41, 49, 68, 82, 98, 119, 157, 164, 196, 238, 287, 314, 476, 574, 628, 697, 833, 1099, 1148, 1394, 1666, 2009, 2198, 2669, 2788, 3332, 4018, 4396, 4879, 5338, 6437, 7693, 8036, 9758, 10676, 12874, 15386, 18683, 19516, 25748, 30772, 34153, 37366, 45059, 68306, 74732, 90118, 109429, 130781, 136612, 180236, 218858, 261562, 315413, 437716, 523124, 630826, 766003, 1261652, 1532006, 3064012, 5362021, 10724042, 21448084]

約数ペア:

[(1, 21448084), (2, 10724042), (4, 5362021), (7, 3064012), (14, 1532006), (17, 1261652), (28, 766003), (34, 630826), (41, 523124), (49, 437716), (68, 315413), (82, 261562), (98, 218858), (119, 180236), (157, 136612), (164, 130781), (196, 109429), (238, 90118), (287, 74732), (314, 68306), (476, 45059), (574, 37366), (628, 34153), (697, 30772), (833, 25748), (1099, 19516), (1148, 18683), (1394, 15386), (1666, 12874), (2009, 10676), (2198, 9758), (2669, 8036), (2788, 7693), (3332, 6437), (4018, 5338), (4396, 4879)]