21574652

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{197}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 22333828

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 131, 197, 209, 262, 394, 418, 524, 788, 836, 1441, 2167, 2489, 2882, 3743, 4334, 4978, 5764, 7486, 8668, 9956, 14972, 25807, 27379, 41173, 51614, 54758, 82346, 103228, 109516, 164692, 283877, 490333, 567754, 980666, 1135508, 1961332, 5393663, 10787326, 21574652]

約数ペア:

[(1, 21574652), (2, 10787326), (4, 5393663), (11, 1961332), (19, 1135508), (22, 980666), (38, 567754), (44, 490333), (76, 283877), (131, 164692), (197, 109516), (209, 103228), (262, 82346), (394, 54758), (418, 51614), (524, 41173), (788, 27379), (836, 25807), (1441, 14972), (2167, 9956), (2489, 8668), (2882, 7486), (3743, 5764), (4334, 4978)]