21567252

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{853}}^1$

素因数の和:917

約数の個数: 72

約数和(自身を含む): 59971296

約数和(自身を除く): 38404044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 43, 49, 84, 86, 98, 129, 147, 172, 196, 258, 294, 301, 516, 588, 602, 853, 903, 1204, 1706, 1806, 2107, 2559, 3412, 3612, 4214, 5118, 5971, 6321, 8428, 10236, 11942, 12642, 17913, 23884, 25284, 35826, 36679, 41797, 71652, 73358, 83594, 110037, 125391, 146716, 167188, 220074, 250782, 256753, 440148, 501564, 513506, 770259, 1027012, 1540518, 1797271, 3081036, 3594542, 5391813, 7189084, 10783626, 21567252]

約数ペア:

[(1, 21567252), (2, 10783626), (3, 7189084), (4, 5391813), (6, 3594542), (7, 3081036), (12, 1797271), (14, 1540518), (21, 1027012), (28, 770259), (42, 513506), (43, 501564), (49, 440148), (84, 256753), (86, 250782), (98, 220074), (129, 167188), (147, 146716), (172, 125391), (196, 110037), (258, 83594), (294, 73358), (301, 71652), (516, 41797), (588, 36679), (602, 35826), (853, 25284), (903, 23884), (1204, 17913), (1706, 12642), (1806, 11942), (2107, 10236), (2559, 8428), (3412, 6321), (3612, 5971), (4214, 5118)]