21730528

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{347}}^1$

素因数の和:479

約数の個数: 48

約数和(自身を含む): 45601920

約数和(自身を除く): 23871392

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 103, 152, 206, 304, 347, 412, 608, 694, 824, 1388, 1648, 1957, 2776, 3296, 3914, 5552, 6593, 7828, 11104, 13186, 15656, 26372, 31312, 35741, 52744, 62624, 71482, 105488, 142964, 210976, 285928, 571856, 679079, 1143712, 1358158, 2716316, 5432632, 10865264, 21730528]

約数ペア:

[(1, 21730528), (2, 10865264), (4, 5432632), (8, 2716316), (16, 1358158), (19, 1143712), (32, 679079), (38, 571856), (76, 285928), (103, 210976), (152, 142964), (206, 105488), (304, 71482), (347, 62624), (412, 52744), (608, 35741), (694, 31312), (824, 26372), (1388, 15656), (1648, 13186), (1957, 11104), (2776, 7828), (3296, 6593), (3914, 5552)]