21003164

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8243}}^1$

素因数の和:8274

約数の個数: 36

約数和(自身を含む): 46050984

約数和(自身を除く): 25047820

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8243, 16486, 32972, 57701, 107159, 115402, 214318, 230804, 403907, 428636, 750113, 807814, 1500226, 1615628, 3000452, 5250791, 10501582, 21003164]

約数ペア:

[(1, 21003164), (2, 10501582), (4, 5250791), (7, 3000452), (13, 1615628), (14, 1500226), (26, 807814), (28, 750113), (49, 428636), (52, 403907), (91, 230804), (98, 214318), (182, 115402), (196, 107159), (364, 57701), (637, 32972), (1274, 16486), (2548, 8243)]