20915928

素因数分解:

$2^3\times 3^3\times {\mathrm{11}}^1\times {\mathrm{8803}}^1$

素因数の和:8829

約数の個数: 64

約数和(自身を含む): 63388800

約数和(自身を除く): 42472872

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 88, 99, 108, 132, 198, 216, 264, 297, 396, 594, 792, 1188, 2376, 8803, 17606, 26409, 35212, 52818, 70424, 79227, 96833, 105636, 158454, 193666, 211272, 237681, 290499, 316908, 387332, 475362, 580998, 633816, 774664, 871497, 950724, 1161996, 1742994, 1901448, 2323992, 2614491, 3485988, 5228982, 6971976, 10457964, 20915928]

約数ペア:

[(1, 20915928), (2, 10457964), (3, 6971976), (4, 5228982), (6, 3485988), (8, 2614491), (9, 2323992), (11, 1901448), (12, 1742994), (18, 1161996), (22, 950724), (24, 871497), (27, 774664), (33, 633816), (36, 580998), (44, 475362), (54, 387332), (66, 316908), (72, 290499), (88, 237681), (99, 211272), (108, 193666), (132, 158454), (198, 105636), (216, 96833), (264, 79227), (297, 70424), (396, 52818), (594, 35212), (792, 26409), (1188, 17606), (2376, 8803)]