21000700023

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1\times {\mathrm{563}}^1$

素因数の和:1375

約数の個数: 32

約数和(自身を含む): 28491547392

約数和(自身を除く): 7490847369

約数列:

[1, 3, 101, 303, 307, 401, 563, 921, 1203, 1689, 31007, 40501, 56863, 93021, 121503, 123107, 170589, 172841, 225763, 369321, 518523, 677289, 12433807, 17456941, 22802063, 37301421, 52370823, 68406189, 69309241, 207927723, 7000233341, 21000700023]

約数ペア:

[(1, 21000700023), (3, 7000233341), (101, 207927723), (303, 69309241), (307, 68406189), (401, 52370823), (563, 37301421), (921, 22802063), (1203, 17456941), (1689, 12433807), (31007, 677289), (40501, 518523), (56863, 369321), (93021, 225763), (121503, 172841), (123107, 170589)]