21475300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2789}}^1$

素因数の和:2821

約数の個数: 72

約数和(自身を含む): 58121280

約数和(自身を除く): 36645980

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2789, 3850, 5578, 7700, 11156, 13945, 19523, 27890, 30679, 39046, 55780, 61358, 69725, 78092, 97615, 122716, 139450, 153395, 195230, 214753, 278900, 306790, 390460, 429506, 488075, 613580, 766975, 859012, 976150, 1073765, 1533950, 1952300, 2147530, 3067900, 4295060, 5368825, 10737650, 21475300]

約数ペア:

[(1, 21475300), (2, 10737650), (4, 5368825), (5, 4295060), (7, 3067900), (10, 2147530), (11, 1952300), (14, 1533950), (20, 1073765), (22, 976150), (25, 859012), (28, 766975), (35, 613580), (44, 488075), (50, 429506), (55, 390460), (70, 306790), (77, 278900), (100, 214753), (110, 195230), (140, 153395), (154, 139450), (175, 122716), (220, 97615), (275, 78092), (308, 69725), (350, 61358), (385, 55780), (550, 39046), (700, 30679), (770, 27890), (1100, 19523), (1540, 13945), (1925, 11156), (2789, 7700), (3850, 5578)]