21040437275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{44927}}^1$

素因数の和:45092

約数の個数: 48

約数和(自身を含む): 30886023168

約数和(自身を除く): 9845585893

約数列:

[1, 5, 11, 13, 25, 55, 65, 131, 143, 275, 325, 655, 715, 1441, 1703, 3275, 3575, 7205, 8515, 18733, 36025, 42575, 44927, 93665, 224635, 468325, 494197, 584051, 1123175, 2470985, 2920255, 5885437, 6424561, 12354925, 14601275, 29427185, 32122805, 64739807, 76510681, 147135925, 160614025, 323699035, 382553405, 841617491, 1618495175, 1912767025, 4208087455, 21040437275]

約数ペア:

[(1, 21040437275), (5, 4208087455), (11, 1912767025), (13, 1618495175), (25, 841617491), (55, 382553405), (65, 323699035), (131, 160614025), (143, 147135925), (275, 76510681), (325, 64739807), (655, 32122805), (715, 29427185), (1441, 14601275), (1703, 12354925), (3275, 6424561), (3575, 5885437), (7205, 2920255), (8515, 2470985), (18733, 1123175), (36025, 584051), (42575, 494197), (44927, 468325), (93665, 224635)]