21478344

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{863}}^1$

素因数の和:950

約数の個数: 64

約数和(自身を含む): 57853440

約数和(自身を除く): 36375096

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 61, 68, 102, 122, 136, 183, 204, 244, 366, 408, 488, 732, 863, 1037, 1464, 1726, 2074, 2589, 3111, 3452, 4148, 5178, 6222, 6904, 8296, 10356, 12444, 14671, 20712, 24888, 29342, 44013, 52643, 58684, 88026, 105286, 117368, 157929, 176052, 210572, 315858, 352104, 421144, 631716, 894931, 1263432, 1789862, 2684793, 3579724, 5369586, 7159448, 10739172, 21478344]

約数ペア:

[(1, 21478344), (2, 10739172), (3, 7159448), (4, 5369586), (6, 3579724), (8, 2684793), (12, 1789862), (17, 1263432), (24, 894931), (34, 631716), (51, 421144), (61, 352104), (68, 315858), (102, 210572), (122, 176052), (136, 157929), (183, 117368), (204, 105286), (244, 88026), (366, 58684), (408, 52643), (488, 44013), (732, 29342), (863, 24888), (1037, 20712), (1464, 14671), (1726, 12444), (2074, 10356), (2589, 8296), (3111, 6904), (3452, 6222), (4148, 5178)]