20996496

素因数分解:

$2^4\times 3^4\times {\mathrm{17}}^1\times {\mathrm{953}}^1$

素因数の和:990

約数の個数: 100

約数和(自身を含む): 64412172

約数和(自身を除く): 43415676

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 27, 34, 36, 48, 51, 54, 68, 72, 81, 102, 108, 136, 144, 153, 162, 204, 216, 272, 306, 324, 408, 432, 459, 612, 648, 816, 918, 953, 1224, 1296, 1377, 1836, 1906, 2448, 2754, 2859, 3672, 3812, 5508, 5718, 7344, 7624, 8577, 11016, 11436, 15248, 16201, 17154, 22032, 22872, 25731, 32402, 34308, 45744, 48603, 51462, 64804, 68616, 77193, 97206, 102924, 129608, 137232, 145809, 154386, 194412, 205848, 259216, 291618, 308772, 388824, 411696, 437427, 583236, 617544, 777648, 874854, 1166472, 1235088, 1312281, 1749708, 2332944, 2624562, 3499416, 5249124, 6998832, 10498248, 20996496]

約数ペア:

[(1, 20996496), (2, 10498248), (3, 6998832), (4, 5249124), (6, 3499416), (8, 2624562), (9, 2332944), (12, 1749708), (16, 1312281), (17, 1235088), (18, 1166472), (24, 874854), (27, 777648), (34, 617544), (36, 583236), (48, 437427), (51, 411696), (54, 388824), (68, 308772), (72, 291618), (81, 259216), (102, 205848), (108, 194412), (136, 154386), (144, 145809), (153, 137232), (162, 129608), (204, 102924), (216, 97206), (272, 77193), (306, 68616), (324, 64804), (408, 51462), (432, 48603), (459, 45744), (612, 34308), (648, 32402), (816, 25731), (918, 22872), (953, 22032), (1224, 17154), (1296, 16201), (1377, 15248), (1836, 11436), (1906, 11016), (2448, 8577), (2754, 7624), (2859, 7344), (3672, 5718), (3812, 5508)]