19724624

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{571}}^1$

素因数の和:723

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 21129904

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 127, 136, 254, 272, 508, 571, 1016, 1142, 2032, 2159, 2284, 4318, 4568, 8636, 9136, 9707, 17272, 19414, 34544, 38828, 72517, 77656, 145034, 155312, 290068, 580136, 1160272, 1232789, 2465578, 4931156, 9862312, 19724624]

約数ペア:

[(1, 19724624), (2, 9862312), (4, 4931156), (8, 2465578), (16, 1232789), (17, 1160272), (34, 580136), (68, 290068), (127, 155312), (136, 145034), (254, 77656), (272, 72517), (508, 38828), (571, 34544), (1016, 19414), (1142, 17272), (2032, 9707), (2159, 9136), (2284, 8636), (4318, 4568)]