21291244804

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{20773}}^1$

素因数の和:20980

約数の個数: 48

約数和(自身を含む): 39158159040

約数和(自身を除く): 17866914236

約数列:

[1, 2, 4, 43, 59, 86, 101, 118, 172, 202, 236, 404, 2537, 4343, 5074, 5959, 8686, 10148, 11918, 17372, 20773, 23836, 41546, 83092, 256237, 512474, 893239, 1024948, 1225607, 1786478, 2098073, 2451214, 3572956, 4196146, 4902428, 8392292, 52701101, 90217139, 105402202, 123786307, 180434278, 210804404, 247572614, 360868556, 495145228, 5322811201, 10645622402, 21291244804]

約数ペア:

[(1, 21291244804), (2, 10645622402), (4, 5322811201), (43, 495145228), (59, 360868556), (86, 247572614), (101, 210804404), (118, 180434278), (172, 123786307), (202, 105402202), (236, 90217139), (404, 52701101), (2537, 8392292), (4343, 4902428), (5074, 4196146), (5959, 3572956), (8686, 2451214), (10148, 2098073), (11918, 1786478), (17372, 1225607), (20773, 1024948), (23836, 893239), (41546, 512474), (83092, 256237)]