21609308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 45964800

約数和(自身を除く): 24355492

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 151, 266, 269, 302, 532, 538, 604, 1057, 1076, 1883, 2114, 2869, 3766, 4228, 5111, 5738, 7532, 10222, 11476, 20083, 20444, 35777, 40166, 40619, 71554, 80332, 81238, 143108, 162476, 284333, 568666, 771761, 1137332, 1543522, 3087044, 5402327, 10804654, 21609308]

約数ペア:

[(1, 21609308), (2, 10804654), (4, 5402327), (7, 3087044), (14, 1543522), (19, 1137332), (28, 771761), (38, 568666), (76, 284333), (133, 162476), (151, 143108), (266, 81238), (269, 80332), (302, 71554), (532, 40619), (538, 40166), (604, 35777), (1057, 20444), (1076, 20083), (1883, 11476), (2114, 10222), (2869, 7532), (3766, 5738), (4228, 5111)]