21492828

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 68402880

約数和(自身を除く): 46910052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 21, 28, 29, 34, 36, 42, 51, 58, 63, 68, 84, 87, 102, 116, 119, 126, 153, 173, 174, 203, 204, 238, 252, 261, 306, 346, 348, 357, 406, 476, 493, 519, 522, 609, 612, 692, 714, 812, 986, 1038, 1044, 1071, 1211, 1218, 1428, 1479, 1557, 1827, 1972, 2076, 2142, 2422, 2436, 2941, 2958, 3114, 3451, 3633, 3654, 4284, 4437, 4844, 5017, 5882, 5916, 6228, 6902, 7266, 7308, 8823, 8874, 10034, 10353, 10899, 11764, 13804, 14532, 15051, 17646, 17748, 20068, 20587, 20706, 21798, 26469, 30102, 31059, 35119, 35292, 41174, 41412, 43596, 45153, 52938, 60204, 61761, 62118, 70238, 82348, 85289, 90306, 105357, 105876, 123522, 124236, 140476, 170578, 180612, 185283, 210714, 247044, 255867, 316071, 341156, 370566, 421428, 511734, 597023, 632142, 741132, 767601, 1023468, 1194046, 1264284, 1535202, 1791069, 2388092, 3070404, 3582138, 5373207, 7164276, 10746414, 21492828]

約数ペア:

[(1, 21492828), (2, 10746414), (3, 7164276), (4, 5373207), (6, 3582138), (7, 3070404), (9, 2388092), (12, 1791069), (14, 1535202), (17, 1264284), (18, 1194046), (21, 1023468), (28, 767601), (29, 741132), (34, 632142), (36, 597023), (42, 511734), (51, 421428), (58, 370566), (63, 341156), (68, 316071), (84, 255867), (87, 247044), (102, 210714), (116, 185283), (119, 180612), (126, 170578), (153, 140476), (173, 124236), (174, 123522), (203, 105876), (204, 105357), (238, 90306), (252, 85289), (261, 82348), (306, 70238), (346, 62118), (348, 61761), (357, 60204), (406, 52938), (476, 45153), (493, 43596), (519, 41412), (522, 41174), (609, 35292), (612, 35119), (692, 31059), (714, 30102), (812, 26469), (986, 21798), (1038, 20706), (1044, 20587), (1071, 20068), (1211, 17748), (1218, 17646), (1428, 15051), (1479, 14532), (1557, 13804), (1827, 11764), (1972, 10899), (2076, 10353), (2142, 10034), (2422, 8874), (2436, 8823), (2941, 7308), (2958, 7266), (3114, 6902), (3451, 6228), (3633, 5916), (3654, 5882), (4284, 5017), (4437, 4844)]