21177728

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 96

約数和(自身を含む): 50398200

約数和(自身を除く): 29220472

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 64, 88, 89, 104, 128, 143, 169, 176, 178, 208, 286, 338, 352, 356, 416, 572, 676, 704, 712, 832, 979, 1144, 1157, 1352, 1408, 1424, 1664, 1859, 1958, 2288, 2314, 2704, 2848, 3718, 3916, 4576, 4628, 5408, 5696, 7436, 7832, 9152, 9256, 10816, 11392, 12727, 14872, 15041, 15664, 18304, 18512, 21632, 25454, 29744, 30082, 31328, 37024, 50908, 59488, 60164, 62656, 74048, 101816, 118976, 120328, 125312, 148096, 165451, 203632, 237952, 240656, 330902, 407264, 481312, 661804, 814528, 962624, 1323608, 1629056, 1925248, 2647216, 5294432, 10588864, 21177728]

約数ペア:

[(1, 21177728), (2, 10588864), (4, 5294432), (8, 2647216), (11, 1925248), (13, 1629056), (16, 1323608), (22, 962624), (26, 814528), (32, 661804), (44, 481312), (52, 407264), (64, 330902), (88, 240656), (89, 237952), (104, 203632), (128, 165451), (143, 148096), (169, 125312), (176, 120328), (178, 118976), (208, 101816), (286, 74048), (338, 62656), (352, 60164), (356, 59488), (416, 50908), (572, 37024), (676, 31328), (704, 30082), (712, 29744), (832, 25454), (979, 21632), (1144, 18512), (1157, 18304), (1352, 15664), (1408, 15041), (1424, 14872), (1664, 12727), (1859, 11392), (1958, 10816), (2288, 9256), (2314, 9152), (2704, 7832), (2848, 7436), (3718, 5696), (3916, 5408), (4576, 4628)]