21795904

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:132

約数の個数: 112

約数和(自身を含む): 52230528

約数和(自身を除く): 30434624

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 32, 34, 46, 52, 64, 67, 68, 92, 104, 134, 136, 184, 208, 221, 268, 272, 299, 368, 391, 416, 442, 536, 544, 598, 736, 782, 832, 871, 884, 1072, 1088, 1139, 1196, 1472, 1541, 1564, 1742, 1768, 2144, 2278, 2392, 3082, 3128, 3484, 3536, 4288, 4556, 4784, 5083, 6164, 6256, 6968, 7072, 9112, 9568, 10166, 12328, 12512, 13936, 14144, 14807, 18224, 19136, 20033, 20332, 24656, 25024, 26197, 27872, 29614, 36448, 40066, 40664, 49312, 52394, 55744, 59228, 72896, 80132, 81328, 98624, 104788, 118456, 160264, 162656, 209576, 236912, 320528, 325312, 340561, 419152, 473824, 641056, 681122, 838304, 947648, 1282112, 1362244, 1676608, 2724488, 5448976, 10897952, 21795904]

約数ペア:

[(1, 21795904), (2, 10897952), (4, 5448976), (8, 2724488), (13, 1676608), (16, 1362244), (17, 1282112), (23, 947648), (26, 838304), (32, 681122), (34, 641056), (46, 473824), (52, 419152), (64, 340561), (67, 325312), (68, 320528), (92, 236912), (104, 209576), (134, 162656), (136, 160264), (184, 118456), (208, 104788), (221, 98624), (268, 81328), (272, 80132), (299, 72896), (368, 59228), (391, 55744), (416, 52394), (442, 49312), (536, 40664), (544, 40066), (598, 36448), (736, 29614), (782, 27872), (832, 26197), (871, 25024), (884, 24656), (1072, 20332), (1088, 20033), (1139, 19136), (1196, 18224), (1472, 14807), (1541, 14144), (1564, 13936), (1742, 12512), (1768, 12328), (2144, 10166), (2278, 9568), (2392, 9112), (3082, 7072), (3128, 6968), (3484, 6256), (3536, 6164), (4288, 5083), (4556, 4784)]