21616928

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{503}}^1$

素因数の和:609

約数の個数: 48

約数和(自身を含む): 45722880

約数和(自身を除く): 24105952

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 79, 136, 158, 272, 316, 503, 544, 632, 1006, 1264, 1343, 2012, 2528, 2686, 4024, 5372, 8048, 8551, 10744, 16096, 17102, 21488, 34204, 39737, 42976, 68408, 79474, 136816, 158948, 273632, 317896, 635792, 675529, 1271584, 1351058, 2702116, 5404232, 10808464, 21616928]

約数ペア:

[(1, 21616928), (2, 10808464), (4, 5404232), (8, 2702116), (16, 1351058), (17, 1271584), (32, 675529), (34, 635792), (68, 317896), (79, 273632), (136, 158948), (158, 136816), (272, 79474), (316, 68408), (503, 42976), (544, 39737), (632, 34204), (1006, 21488), (1264, 17102), (1343, 16096), (2012, 10744), (2528, 8551), (2686, 8048), (4024, 5372)]