21074724

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2801}}^1$

素因数の和:2841

約数の個数: 72

約数和(自身を含む): 61195680

約数和(自身を除く): 40120956

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 57, 66, 76, 99, 114, 132, 171, 198, 209, 228, 342, 396, 418, 627, 684, 836, 1254, 1881, 2508, 2801, 3762, 5602, 7524, 8403, 11204, 16806, 25209, 30811, 33612, 50418, 53219, 61622, 92433, 100836, 106438, 123244, 159657, 184866, 212876, 277299, 319314, 369732, 478971, 554598, 585409, 638628, 957942, 1109196, 1170818, 1756227, 1915884, 2341636, 3512454, 5268681, 7024908, 10537362, 21074724]

約数ペア:

[(1, 21074724), (2, 10537362), (3, 7024908), (4, 5268681), (6, 3512454), (9, 2341636), (11, 1915884), (12, 1756227), (18, 1170818), (19, 1109196), (22, 957942), (33, 638628), (36, 585409), (38, 554598), (44, 478971), (57, 369732), (66, 319314), (76, 277299), (99, 212876), (114, 184866), (132, 159657), (171, 123244), (198, 106438), (209, 100836), (228, 92433), (342, 61622), (396, 53219), (418, 50418), (627, 33612), (684, 30811), (836, 25209), (1254, 16806), (1881, 11204), (2508, 8403), (2801, 7524), (3762, 5602)]