21980864

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:345

約数の個数: 56

約数和(自身を含む): 46908720

約数和(自身を除く): 24927856

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 89, 136, 178, 227, 272, 356, 454, 544, 712, 908, 1088, 1424, 1513, 1816, 2848, 3026, 3632, 3859, 5696, 6052, 7264, 7718, 12104, 14528, 15436, 20203, 24208, 30872, 40406, 48416, 61744, 80812, 96832, 123488, 161624, 246976, 323248, 343451, 646496, 686902, 1292992, 1373804, 2747608, 5495216, 10990432, 21980864]

約数ペア:

[(1, 21980864), (2, 10990432), (4, 5495216), (8, 2747608), (16, 1373804), (17, 1292992), (32, 686902), (34, 646496), (64, 343451), (68, 323248), (89, 246976), (136, 161624), (178, 123488), (227, 96832), (272, 80812), (356, 61744), (454, 48416), (544, 40406), (712, 30872), (908, 24208), (1088, 20203), (1424, 15436), (1513, 14528), (1816, 12104), (2848, 7718), (3026, 7264), (3632, 6052), (3859, 5696)]