20804634

素因数分解:

$2^1\times 3^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 64

約数和(自身を含む): 49610880

約数和(自身を除く): 28806246

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 131, 153, 173, 262, 306, 346, 393, 459, 519, 786, 918, 1038, 1179, 1557, 2227, 2358, 2941, 3114, 3537, 4454, 4671, 5882, 6681, 7074, 8823, 9342, 13362, 17646, 20043, 22663, 26469, 40086, 45326, 52938, 60129, 67989, 79407, 120258, 135978, 158814, 203967, 385271, 407934, 611901, 770542, 1155813, 1223802, 2311626, 3467439, 6934878, 10402317, 20804634]

約数ペア:

[(1, 20804634), (2, 10402317), (3, 6934878), (6, 3467439), (9, 2311626), (17, 1223802), (18, 1155813), (27, 770542), (34, 611901), (51, 407934), (54, 385271), (102, 203967), (131, 158814), (153, 135978), (173, 120258), (262, 79407), (306, 67989), (346, 60129), (393, 52938), (459, 45326), (519, 40086), (786, 26469), (918, 22663), (1038, 20043), (1179, 17646), (1557, 13362), (2227, 9342), (2358, 8823), (2941, 7074), (3114, 6681), (3537, 5882), (4454, 4671)]