21405132

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^2\times {\mathrm{101}}^1$

素因数の和:176

約数の個数: 108

約数和(自身を含む): 64676976

約数和(自身を除く): 43271844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 101, 116, 126, 174, 202, 203, 252, 261, 303, 348, 404, 406, 522, 606, 609, 707, 812, 841, 909, 1044, 1212, 1218, 1414, 1682, 1818, 1827, 2121, 2436, 2523, 2828, 2929, 3364, 3636, 3654, 4242, 5046, 5858, 5887, 6363, 7308, 7569, 8484, 8787, 10092, 11716, 11774, 12726, 15138, 17574, 17661, 20503, 23548, 25452, 26361, 30276, 35148, 35322, 41006, 52722, 52983, 61509, 70644, 82012, 84941, 105444, 105966, 123018, 169882, 184527, 211932, 246036, 254823, 339764, 369054, 509646, 594587, 738108, 764469, 1019292, 1189174, 1528938, 1783761, 2378348, 3057876, 3567522, 5351283, 7135044, 10702566, 21405132]

約数ペア:

[(1, 21405132), (2, 10702566), (3, 7135044), (4, 5351283), (6, 3567522), (7, 3057876), (9, 2378348), (12, 1783761), (14, 1528938), (18, 1189174), (21, 1019292), (28, 764469), (29, 738108), (36, 594587), (42, 509646), (58, 369054), (63, 339764), (84, 254823), (87, 246036), (101, 211932), (116, 184527), (126, 169882), (174, 123018), (202, 105966), (203, 105444), (252, 84941), (261, 82012), (303, 70644), (348, 61509), (404, 52983), (406, 52722), (522, 41006), (606, 35322), (609, 35148), (707, 30276), (812, 26361), (841, 25452), (909, 23548), (1044, 20503), (1212, 17661), (1218, 17574), (1414, 15138), (1682, 12726), (1818, 11774), (1827, 11716), (2121, 10092), (2436, 8787), (2523, 8484), (2828, 7569), (2929, 7308), (3364, 6363), (3636, 5887), (3654, 5858), (4242, 5046)]