21993032

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{563}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 43653600

約数和(自身を除く): 21660568

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 257, 514, 563, 1028, 1126, 2056, 2252, 4504, 4883, 9766, 10697, 19532, 21394, 39064, 42788, 85576, 144691, 289382, 578764, 1157528, 2749129, 5498258, 10996516, 21993032]

約数ペア:

[(1, 21993032), (2, 10996516), (4, 5498258), (8, 2749129), (19, 1157528), (38, 578764), (76, 289382), (152, 144691), (257, 85576), (514, 42788), (563, 39064), (1028, 21394), (1126, 19532), (2056, 10697), (2252, 9766), (4504, 4883)]