20871036

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 72

約数和(自身を含む): 56805840

約数和(自身を除く): 35934804

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 67, 68, 102, 134, 153, 201, 204, 268, 306, 402, 509, 603, 612, 804, 1018, 1139, 1206, 1527, 2036, 2278, 2412, 3054, 3417, 4556, 4581, 6108, 6834, 8653, 9162, 10251, 13668, 17306, 18324, 20502, 25959, 34103, 34612, 41004, 51918, 68206, 77877, 102309, 103836, 136412, 155754, 204618, 306927, 311508, 409236, 579751, 613854, 1159502, 1227708, 1739253, 2319004, 3478506, 5217759, 6957012, 10435518, 20871036]

約数ペア:

[(1, 20871036), (2, 10435518), (3, 6957012), (4, 5217759), (6, 3478506), (9, 2319004), (12, 1739253), (17, 1227708), (18, 1159502), (34, 613854), (36, 579751), (51, 409236), (67, 311508), (68, 306927), (102, 204618), (134, 155754), (153, 136412), (201, 103836), (204, 102309), (268, 77877), (306, 68206), (402, 51918), (509, 41004), (603, 34612), (612, 34103), (804, 25959), (1018, 20502), (1139, 18324), (1206, 17306), (1527, 13668), (2036, 10251), (2278, 9162), (2412, 8653), (3054, 6834), (3417, 6108), (4556, 4581)]