21000891284

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{277}}^1\times {\mathrm{307}}^1\times {\mathrm{577}}^1$

素因数の和:1272

約数の個数: 48

約数和(自身を含む): 37414948032

約数和(自身を除く): 16414056748

約数列:

[1, 2, 4, 107, 214, 277, 307, 428, 554, 577, 614, 1108, 1154, 1228, 2308, 29639, 32849, 59278, 61739, 65698, 85039, 118556, 123478, 131396, 159829, 170078, 177139, 246956, 319658, 340156, 354278, 639316, 708556, 9099173, 17101703, 18198346, 18953873, 34203406, 36396692, 37907746, 49067503, 68406812, 75815492, 98135006, 196270012, 5250222821, 10500445642, 21000891284]

約数ペア:

[(1, 21000891284), (2, 10500445642), (4, 5250222821), (107, 196270012), (214, 98135006), (277, 75815492), (307, 68406812), (428, 49067503), (554, 37907746), (577, 36396692), (614, 34203406), (1108, 18953873), (1154, 18198346), (1228, 17101703), (2308, 9099173), (29639, 708556), (32849, 639316), (59278, 354278), (61739, 340156), (65698, 319658), (85039, 246956), (118556, 177139), (123478, 170078), (131396, 159829)]