20781617724

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{8269}}^1\times {\mathrm{9973}}^1$

素因数の和:18259

約数の個数: 72

約数和(自身を含む): 60049065440

約数和(自身を除く): 39267447716

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 8269, 9973, 16538, 19946, 24807, 29919, 33076, 39892, 49614, 57883, 59838, 69811, 74421, 89757, 99228, 115766, 119676, 139622, 148842, 173649, 179514, 209433, 231532, 279244, 297684, 347298, 359028, 418866, 520947, 628299, 694596, 837732, 1041894, 1256598, 2083788, 2513196, 82466737, 164933474, 247400211, 329866948, 494800422, 577267159, 742200633, 989600844, 1154534318, 1484401266, 1731801477, 2309068636, 2968802532, 3463602954, 5195404431, 6927205908, 10390808862, 20781617724]

約数ペア:

[(1, 20781617724), (2, 10390808862), (3, 6927205908), (4, 5195404431), (6, 3463602954), (7, 2968802532), (9, 2309068636), (12, 1731801477), (14, 1484401266), (18, 1154534318), (21, 989600844), (28, 742200633), (36, 577267159), (42, 494800422), (63, 329866948), (84, 247400211), (126, 164933474), (252, 82466737), (8269, 2513196), (9973, 2083788), (16538, 1256598), (19946, 1041894), (24807, 837732), (29919, 694596), (33076, 628299), (39892, 520947), (49614, 418866), (57883, 359028), (59838, 347298), (69811, 297684), (74421, 279244), (89757, 231532), (99228, 209433), (115766, 179514), (119676, 173649), (139622, 148842)]