21172968

素因数分解:

$2^3\times 3^3\times {\mathrm{83}}^1\times {\mathrm{1181}}^1$

素因数の和:1279

約数の個数: 64

約数和(自身を含む): 59572800

約数和(自身を除く): 38399832

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 83, 108, 166, 216, 249, 332, 498, 664, 747, 996, 1181, 1494, 1992, 2241, 2362, 2988, 3543, 4482, 4724, 5976, 7086, 8964, 9448, 10629, 14172, 17928, 21258, 28344, 31887, 42516, 63774, 85032, 98023, 127548, 196046, 255096, 294069, 392092, 588138, 784184, 882207, 1176276, 1764414, 2352552, 2646621, 3528828, 5293242, 7057656, 10586484, 21172968]

約数ペア:

[(1, 21172968), (2, 10586484), (3, 7057656), (4, 5293242), (6, 3528828), (8, 2646621), (9, 2352552), (12, 1764414), (18, 1176276), (24, 882207), (27, 784184), (36, 588138), (54, 392092), (72, 294069), (83, 255096), (108, 196046), (166, 127548), (216, 98023), (249, 85032), (332, 63774), (498, 42516), (664, 31887), (747, 28344), (996, 21258), (1181, 17928), (1494, 14172), (1992, 10629), (2241, 9448), (2362, 8964), (2988, 7086), (3543, 5976), (4482, 4724)]