19381216

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 40642560

約数和(自身を除く): 21261344

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 127, 152, 251, 254, 304, 502, 508, 608, 1004, 1016, 2008, 2032, 2413, 4016, 4064, 4769, 4826, 8032, 9538, 9652, 19076, 19304, 31877, 38152, 38608, 63754, 76304, 77216, 127508, 152608, 255016, 510032, 605663, 1020064, 1211326, 2422652, 4845304, 9690608, 19381216]

約数ペア:

[(1, 19381216), (2, 9690608), (4, 4845304), (8, 2422652), (16, 1211326), (19, 1020064), (32, 605663), (38, 510032), (76, 255016), (127, 152608), (152, 127508), (251, 77216), (254, 76304), (304, 63754), (502, 38608), (508, 38152), (608, 31877), (1004, 19304), (1016, 19076), (2008, 9652), (2032, 9538), (2413, 8032), (4016, 4826), (4064, 4769)]