21642156975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{211711}}^1$

素因数の和:211800

約数の個数: 48

約数和(自身を含む): 37803294720

約数和(自身を除く): 16161137745

約数列:

[1, 3, 5, 15, 25, 29, 47, 75, 87, 141, 145, 235, 435, 705, 725, 1175, 1363, 2175, 3525, 4089, 6815, 20445, 34075, 102225, 211711, 635133, 1058555, 3175665, 5292775, 6139619, 9950417, 15878325, 18418857, 29851251, 30698095, 49752085, 92094285, 149256255, 153490475, 248760425, 288562093, 460471425, 746281275, 865686279, 1442810465, 4328431395, 7214052325, 21642156975]

約数ペア:

[(1, 21642156975), (3, 7214052325), (5, 4328431395), (15, 1442810465), (25, 865686279), (29, 746281275), (47, 460471425), (75, 288562093), (87, 248760425), (141, 153490475), (145, 149256255), (235, 92094285), (435, 49752085), (705, 30698095), (725, 29851251), (1175, 18418857), (1363, 15878325), (2175, 9950417), (3525, 6139619), (4089, 5292775), (6815, 3175665), (20445, 1058555), (34075, 635133), (102225, 211711)]