21568921904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{88799}}^1$

素因数の和:88890

約数の個数: 80

約数和(自身を含む): 47568384000

約数和(自身を除く): 25999462096

約数列:

[1, 2, 4, 8, 16, 17, 19, 34, 38, 47, 68, 76, 94, 136, 152, 188, 272, 304, 323, 376, 646, 752, 799, 893, 1292, 1598, 1786, 2584, 3196, 3572, 5168, 6392, 7144, 12784, 14288, 15181, 30362, 60724, 88799, 121448, 177598, 242896, 355196, 710392, 1420784, 1509583, 1687181, 3019166, 3374362, 4173553, 6038332, 6748724, 8347106, 12076664, 13497448, 16694212, 24153328, 26994896, 28682077, 33388424, 57364154, 66776848, 70950401, 79297507, 114728308, 141900802, 158595014, 229456616, 283801604, 317190028, 458913232, 567603208, 634380056, 1135206416, 1268760112, 1348057619, 2696115238, 5392230476, 10784460952, 21568921904]

約数ペア:

[(1, 21568921904), (2, 10784460952), (4, 5392230476), (8, 2696115238), (16, 1348057619), (17, 1268760112), (19, 1135206416), (34, 634380056), (38, 567603208), (47, 458913232), (68, 317190028), (76, 283801604), (94, 229456616), (136, 158595014), (152, 141900802), (188, 114728308), (272, 79297507), (304, 70950401), (323, 66776848), (376, 57364154), (646, 33388424), (752, 28682077), (799, 26994896), (893, 24153328), (1292, 16694212), (1598, 13497448), (1786, 12076664), (2584, 8347106), (3196, 6748724), (3572, 6038332), (5168, 4173553), (6392, 3374362), (7144, 3019166), (12784, 1687181), (14288, 1509583), (15181, 1420784), (30362, 710392), (60724, 355196), (88799, 242896), (121448, 177598)]