21176928

素因数分解:

$2^5\times 3^2\times {\mathrm{23}}^2\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 108

約数和(自身を含む): 63406980

約数和(自身を除く): 42230052

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 32, 36, 46, 48, 69, 72, 92, 96, 138, 139, 144, 184, 207, 276, 278, 288, 368, 414, 417, 529, 552, 556, 736, 828, 834, 1058, 1104, 1112, 1251, 1587, 1656, 1668, 2116, 2208, 2224, 2502, 3174, 3197, 3312, 3336, 4232, 4448, 4761, 5004, 6348, 6394, 6624, 6672, 8464, 9522, 9591, 10008, 12696, 12788, 13344, 16928, 19044, 19182, 20016, 25392, 25576, 28773, 38088, 38364, 40032, 50784, 51152, 57546, 73531, 76176, 76728, 102304, 115092, 147062, 152352, 153456, 220593, 230184, 294124, 306912, 441186, 460368, 588248, 661779, 882372, 920736, 1176496, 1323558, 1764744, 2352992, 2647116, 3529488, 5294232, 7058976, 10588464, 21176928]

約数ペア:

[(1, 21176928), (2, 10588464), (3, 7058976), (4, 5294232), (6, 3529488), (8, 2647116), (9, 2352992), (12, 1764744), (16, 1323558), (18, 1176496), (23, 920736), (24, 882372), (32, 661779), (36, 588248), (46, 460368), (48, 441186), (69, 306912), (72, 294124), (92, 230184), (96, 220593), (138, 153456), (139, 152352), (144, 147062), (184, 115092), (207, 102304), (276, 76728), (278, 76176), (288, 73531), (368, 57546), (414, 51152), (417, 50784), (529, 40032), (552, 38364), (556, 38088), (736, 28773), (828, 25576), (834, 25392), (1058, 20016), (1104, 19182), (1112, 19044), (1251, 16928), (1587, 13344), (1656, 12788), (1668, 12696), (2116, 10008), (2208, 9591), (2224, 9522), (2502, 8464), (3174, 6672), (3197, 6624), (3312, 6394), (3336, 6348), (4232, 5004), (4448, 4761)]