21370448

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 26840752

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 53, 58, 79, 88, 106, 116, 158, 176, 212, 232, 316, 319, 424, 464, 583, 632, 638, 848, 869, 1166, 1264, 1276, 1537, 1738, 2291, 2332, 2552, 3074, 3476, 4187, 4582, 4664, 5104, 6148, 6952, 8374, 9164, 9328, 12296, 13904, 16748, 16907, 18328, 24592, 25201, 33496, 33814, 36656, 46057, 50402, 66992, 67628, 92114, 100804, 121423, 135256, 184228, 201608, 242846, 270512, 368456, 403216, 485692, 736912, 971384, 1335653, 1942768, 2671306, 5342612, 10685224, 21370448]

約数ペア:

[(1, 21370448), (2, 10685224), (4, 5342612), (8, 2671306), (11, 1942768), (16, 1335653), (22, 971384), (29, 736912), (44, 485692), (53, 403216), (58, 368456), (79, 270512), (88, 242846), (106, 201608), (116, 184228), (158, 135256), (176, 121423), (212, 100804), (232, 92114), (316, 67628), (319, 66992), (424, 50402), (464, 46057), (583, 36656), (632, 33814), (638, 33496), (848, 25201), (869, 24592), (1166, 18328), (1264, 16907), (1276, 16748), (1537, 13904), (1738, 12296), (2291, 9328), (2332, 9164), (2552, 8374), (3074, 6952), (3476, 6148), (4187, 5104), (4582, 4664)]