21509904

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{34471}}^1$

素因数の和:34495

約数の個数: 40

約数和(自身を含む): 59843392

約数和(自身を除く): 38333488

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 34471, 68942, 103413, 137884, 206826, 275768, 413652, 448123, 551536, 827304, 896246, 1344369, 1654608, 1792492, 2688738, 3584984, 5377476, 7169968, 10754952, 21509904]

約数ペア:

[(1, 21509904), (2, 10754952), (3, 7169968), (4, 5377476), (6, 3584984), (8, 2688738), (12, 1792492), (13, 1654608), (16, 1344369), (24, 896246), (26, 827304), (39, 551536), (48, 448123), (52, 413652), (78, 275768), (104, 206826), (156, 137884), (208, 103413), (312, 68942), (624, 34471)]