21672920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28517}}^1$

素因数の和:28547

約数の個数: 32

約数和(自身を含む): 51332400

約数和(自身を除く): 29659480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28517, 57034, 114068, 142585, 228136, 285170, 541823, 570340, 1083646, 1140680, 2167292, 2709115, 4334584, 5418230, 10836460, 21672920]

約数ペア:

[(1, 21672920), (2, 10836460), (4, 5418230), (5, 4334584), (8, 2709115), (10, 2167292), (19, 1140680), (20, 1083646), (38, 570340), (40, 541823), (76, 285170), (95, 228136), (152, 142585), (190, 114068), (380, 57034), (760, 28517)]