21000978870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1402871}}^1$

素因数の和:1403380

約数の個数: 32

約数和(自身を含む): 50503392000

約数和(自身を除く): 29502413130

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 499, 998, 1497, 2495, 2994, 4990, 7485, 14970, 1402871, 2805742, 4208613, 7014355, 8417226, 14028710, 21043065, 42086130, 700032629, 1400065258, 2100097887, 3500163145, 4200195774, 7000326290, 10500489435, 21000978870]

約数ペア:

[(1, 21000978870), (2, 10500489435), (3, 7000326290), (5, 4200195774), (6, 3500163145), (10, 2100097887), (15, 1400065258), (30, 700032629), (499, 42086130), (998, 21043065), (1497, 14028710), (2495, 8417226), (2994, 7014355), (4990, 4208613), (7485, 2805742), (14970, 1402871)]