19728228

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 54020736

約数和(自身を除く): 34292508

約数列:

[1, 2, 3, 4, 6, 12, 13, 17, 26, 34, 39, 43, 51, 52, 68, 78, 86, 102, 129, 156, 172, 173, 204, 221, 258, 346, 442, 516, 519, 559, 663, 692, 731, 884, 1038, 1118, 1326, 1462, 1677, 2076, 2193, 2236, 2249, 2652, 2924, 2941, 3354, 4386, 4498, 5882, 6708, 6747, 7439, 8772, 8823, 8996, 9503, 11764, 13494, 14878, 17646, 19006, 22317, 26988, 28509, 29756, 35292, 38012, 38233, 44634, 57018, 76466, 89268, 96707, 114036, 114699, 126463, 152932, 193414, 229398, 252926, 290121, 379389, 386828, 458796, 505852, 580242, 758778, 1160484, 1517556, 1644019, 3288038, 4932057, 6576076, 9864114, 19728228]

約数ペア:

[(1, 19728228), (2, 9864114), (3, 6576076), (4, 4932057), (6, 3288038), (12, 1644019), (13, 1517556), (17, 1160484), (26, 758778), (34, 580242), (39, 505852), (43, 458796), (51, 386828), (52, 379389), (68, 290121), (78, 252926), (86, 229398), (102, 193414), (129, 152932), (156, 126463), (172, 114699), (173, 114036), (204, 96707), (221, 89268), (258, 76466), (346, 57018), (442, 44634), (516, 38233), (519, 38012), (559, 35292), (663, 29756), (692, 28509), (731, 26988), (884, 22317), (1038, 19006), (1118, 17646), (1326, 14878), (1462, 13494), (1677, 11764), (2076, 9503), (2193, 8996), (2236, 8823), (2249, 8772), (2652, 7439), (2924, 6747), (2941, 6708), (3354, 5882), (4386, 4498)]