21409156695

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{132241}}^1$

素因数の和:132543

約数の個数: 32

約数和(自身を含む): 35191183104

約数和(自身を除く): 13782026409

約数列:

[1, 3, 5, 15, 43, 129, 215, 251, 645, 753, 1255, 3765, 10793, 32379, 53965, 132241, 161895, 396723, 661205, 1983615, 5686363, 17059089, 28431815, 33192491, 85295445, 99577473, 165962455, 497887365, 1427277113, 4281831339, 7136385565, 21409156695]

約数ペア:

[(1, 21409156695), (3, 7136385565), (5, 4281831339), (15, 1427277113), (43, 497887365), (129, 165962455), (215, 99577473), (251, 85295445), (645, 33192491), (753, 28431815), (1255, 17059089), (3765, 5686363), (10793, 1983615), (32379, 661205), (53965, 396723), (132241, 161895)]