21761792

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{503}}^1$

素因数の和:545

約数の個数: 54

約数和(自身を含む): 47130552

約数和(自身を除く): 25368760

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 169, 208, 256, 338, 416, 503, 676, 832, 1006, 1352, 1664, 2012, 2704, 3328, 4024, 5408, 6539, 8048, 10816, 13078, 16096, 21632, 26156, 32192, 43264, 52312, 64384, 85007, 104624, 128768, 170014, 209248, 340028, 418496, 680056, 836992, 1360112, 1673984, 2720224, 5440448, 10880896, 21761792]

約数ペア:

[(1, 21761792), (2, 10880896), (4, 5440448), (8, 2720224), (13, 1673984), (16, 1360112), (26, 836992), (32, 680056), (52, 418496), (64, 340028), (104, 209248), (128, 170014), (169, 128768), (208, 104624), (256, 85007), (338, 64384), (416, 52312), (503, 43264), (676, 32192), (832, 26156), (1006, 21632), (1352, 16096), (1664, 13078), (2012, 10816), (2704, 8048), (3328, 6539), (4024, 5408)]