21496888

素因数分解:

$2^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 50889600

約数和(自身を除く): 29392712

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 31, 49, 56, 58, 61, 62, 98, 116, 122, 124, 196, 203, 217, 232, 244, 248, 392, 406, 427, 434, 488, 812, 854, 868, 899, 1421, 1519, 1624, 1708, 1736, 1769, 1798, 1891, 2842, 2989, 3038, 3416, 3538, 3596, 3782, 5684, 5978, 6076, 6293, 7076, 7192, 7564, 11368, 11956, 12152, 12383, 12586, 13237, 14152, 15128, 23912, 24766, 25172, 26474, 44051, 49532, 50344, 52948, 54839, 86681, 88102, 92659, 99064, 105896, 109678, 173362, 176204, 185318, 219356, 346724, 352408, 370636, 383873, 438712, 693448, 741272, 767746, 1535492, 2687111, 3070984, 5374222, 10748444, 21496888]

約数ペア:

[(1, 21496888), (2, 10748444), (4, 5374222), (7, 3070984), (8, 2687111), (14, 1535492), (28, 767746), (29, 741272), (31, 693448), (49, 438712), (56, 383873), (58, 370636), (61, 352408), (62, 346724), (98, 219356), (116, 185318), (122, 176204), (124, 173362), (196, 109678), (203, 105896), (217, 99064), (232, 92659), (244, 88102), (248, 86681), (392, 54839), (406, 52948), (427, 50344), (434, 49532), (488, 44051), (812, 26474), (854, 25172), (868, 24766), (899, 23912), (1421, 15128), (1519, 14152), (1624, 13237), (1708, 12586), (1736, 12383), (1769, 12152), (1798, 11956), (1891, 11368), (2842, 7564), (2989, 7192), (3038, 7076), (3416, 6293), (3538, 6076), (3596, 5978), (3782, 5684)]