21368325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{439}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 39283200

約数和(自身を除く): 17914875

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 59, 75, 165, 177, 275, 295, 439, 649, 825, 885, 1317, 1475, 1947, 2195, 3245, 4425, 4829, 6585, 9735, 10975, 14487, 16225, 24145, 25901, 32925, 48675, 72435, 77703, 120725, 129505, 284911, 362175, 388515, 647525, 854733, 1424555, 1942575, 4273665, 7122775, 21368325]

約数ペア:

[(1, 21368325), (3, 7122775), (5, 4273665), (11, 1942575), (15, 1424555), (25, 854733), (33, 647525), (55, 388515), (59, 362175), (75, 284911), (165, 129505), (177, 120725), (275, 77703), (295, 72435), (439, 48675), (649, 32925), (825, 25901), (885, 24145), (1317, 16225), (1475, 14487), (1947, 10975), (2195, 9735), (3245, 6585), (4425, 4829)]