20676975

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 37926144

約数和(自身を除く): 17249169

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 165, 213, 275, 353, 355, 781, 825, 1059, 1065, 1765, 1775, 2343, 3883, 3905, 5295, 5325, 8825, 11649, 11715, 19415, 19525, 25063, 26475, 58245, 58575, 75189, 97075, 125315, 275693, 291225, 375945, 626575, 827079, 1378465, 1879725, 4135395, 6892325, 20676975]

約数ペア:

[(1, 20676975), (3, 6892325), (5, 4135395), (11, 1879725), (15, 1378465), (25, 827079), (33, 626575), (55, 375945), (71, 291225), (75, 275693), (165, 125315), (213, 97075), (275, 75189), (353, 58575), (355, 58245), (781, 26475), (825, 25063), (1059, 19525), (1065, 19415), (1765, 11715), (1775, 11649), (2343, 8825), (3883, 5325), (3905, 5295)]