21731325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 46282752

約数和(自身を除く): 24551427

約数列:

[1, 3, 5, 7, 11, 15, 21, 25, 33, 35, 53, 55, 71, 75, 77, 105, 159, 165, 175, 213, 231, 265, 275, 355, 371, 385, 497, 525, 583, 781, 795, 825, 1065, 1113, 1155, 1325, 1491, 1749, 1775, 1855, 1925, 2343, 2485, 2915, 3763, 3905, 3975, 4081, 5325, 5467, 5565, 5775, 7455, 8745, 9275, 11289, 11715, 12243, 12425, 14575, 16401, 18815, 19525, 20405, 26341, 27335, 27825, 37275, 41393, 43725, 56445, 58575, 61215, 79023, 82005, 94075, 102025, 124179, 131705, 136675, 206965, 282225, 289751, 306075, 395115, 410025, 620895, 658525, 869253, 1034825, 1448755, 1975575, 3104475, 4346265, 7243775, 21731325]

約数ペア:

[(1, 21731325), (3, 7243775), (5, 4346265), (7, 3104475), (11, 1975575), (15, 1448755), (21, 1034825), (25, 869253), (33, 658525), (35, 620895), (53, 410025), (55, 395115), (71, 306075), (75, 289751), (77, 282225), (105, 206965), (159, 136675), (165, 131705), (175, 124179), (213, 102025), (231, 94075), (265, 82005), (275, 79023), (355, 61215), (371, 58575), (385, 56445), (497, 43725), (525, 41393), (583, 37275), (781, 27825), (795, 27335), (825, 26341), (1065, 20405), (1113, 19525), (1155, 18815), (1325, 16401), (1491, 14575), (1749, 12425), (1775, 12243), (1855, 11715), (1925, 11289), (2343, 9275), (2485, 8745), (2915, 7455), (3763, 5775), (3905, 5565), (3975, 5467), (4081, 5325)]