21027796

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 40578048

約数和(自身を除く): 19550252

約数列:

[1, 2, 4, 23, 31, 46, 62, 73, 92, 101, 124, 146, 202, 292, 404, 713, 1426, 1679, 2263, 2323, 2852, 3131, 3358, 4526, 4646, 6262, 6716, 7373, 9052, 9292, 12524, 14746, 29492, 52049, 72013, 104098, 144026, 169579, 208196, 228563, 288052, 339158, 457126, 678316, 914252, 5256949, 10513898, 21027796]

約数ペア:

[(1, 21027796), (2, 10513898), (4, 5256949), (23, 914252), (31, 678316), (46, 457126), (62, 339158), (73, 288052), (92, 228563), (101, 208196), (124, 169579), (146, 144026), (202, 104098), (292, 72013), (404, 52049), (713, 29492), (1426, 14746), (1679, 12524), (2263, 9292), (2323, 9052), (2852, 7373), (3131, 6716), (3358, 6262), (4526, 4646)]