21520464

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{3371}}^1$

素因数の和:3408

約数の個数: 80

約数和(自身を含む): 66900480

約数和(自身を除く): 45380016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 38, 42, 48, 56, 57, 76, 84, 112, 114, 133, 152, 168, 228, 266, 304, 336, 399, 456, 532, 798, 912, 1064, 1596, 2128, 3192, 3371, 6384, 6742, 10113, 13484, 20226, 23597, 26968, 40452, 47194, 53936, 64049, 70791, 80904, 94388, 128098, 141582, 161808, 188776, 192147, 256196, 283164, 377552, 384294, 448343, 512392, 566328, 768588, 896686, 1024784, 1132656, 1345029, 1537176, 1793372, 2690058, 3074352, 3586744, 5380116, 7173488, 10760232, 21520464]

約数ペア:

[(1, 21520464), (2, 10760232), (3, 7173488), (4, 5380116), (6, 3586744), (7, 3074352), (8, 2690058), (12, 1793372), (14, 1537176), (16, 1345029), (19, 1132656), (21, 1024784), (24, 896686), (28, 768588), (38, 566328), (42, 512392), (48, 448343), (56, 384294), (57, 377552), (76, 283164), (84, 256196), (112, 192147), (114, 188776), (133, 161808), (152, 141582), (168, 128098), (228, 94388), (266, 80904), (304, 70791), (336, 64049), (399, 53936), (456, 47194), (532, 40452), (798, 26968), (912, 23597), (1064, 20226), (1596, 13484), (2128, 10113), (3192, 6742), (3371, 6384)]