21348210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:152

約数の個数: 128

約数和(自身を含む): 60318720

約数和(自身を除く): 38970510

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 19, 26, 30, 38, 39, 43, 57, 65, 67, 78, 86, 95, 114, 129, 130, 134, 190, 195, 201, 215, 247, 258, 285, 335, 390, 402, 430, 494, 559, 570, 645, 670, 741, 817, 871, 1005, 1118, 1235, 1273, 1290, 1482, 1634, 1677, 1742, 2010, 2451, 2470, 2546, 2613, 2795, 2881, 3354, 3705, 3819, 4085, 4355, 4902, 5226, 5590, 5762, 6365, 7410, 7638, 8170, 8385, 8643, 8710, 10621, 12255, 12730, 13065, 14405, 16549, 16770, 17286, 19095, 21242, 24510, 26130, 28810, 31863, 33098, 37453, 38190, 43215, 49647, 53105, 54739, 63726, 74906, 82745, 86430, 99294, 106210, 109478, 112359, 159315, 164217, 165490, 187265, 224718, 248235, 273695, 318630, 328434, 374530, 496470, 547390, 561795, 711607, 821085, 1123590, 1423214, 1642170, 2134821, 3558035, 4269642, 7116070, 10674105, 21348210]

約数ペア:

[(1, 21348210), (2, 10674105), (3, 7116070), (5, 4269642), (6, 3558035), (10, 2134821), (13, 1642170), (15, 1423214), (19, 1123590), (26, 821085), (30, 711607), (38, 561795), (39, 547390), (43, 496470), (57, 374530), (65, 328434), (67, 318630), (78, 273695), (86, 248235), (95, 224718), (114, 187265), (129, 165490), (130, 164217), (134, 159315), (190, 112359), (195, 109478), (201, 106210), (215, 99294), (247, 86430), (258, 82745), (285, 74906), (335, 63726), (390, 54739), (402, 53105), (430, 49647), (494, 43215), (559, 38190), (570, 37453), (645, 33098), (670, 31863), (741, 28810), (817, 26130), (871, 24510), (1005, 21242), (1118, 19095), (1235, 17286), (1273, 16770), (1290, 16549), (1482, 14405), (1634, 13065), (1677, 12730), (1742, 12255), (2010, 10621), (2451, 8710), (2470, 8643), (2546, 8385), (2613, 8170), (2795, 7638), (2881, 7410), (3354, 6365), (3705, 5762), (3819, 5590), (4085, 5226), (4355, 4902)]