21119175

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 144

約数和(自身を含む): 50139648

約数和(自身を除く): 29020473

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 23, 25, 33, 35, 45, 53, 55, 63, 69, 75, 77, 99, 105, 115, 159, 161, 165, 175, 207, 225, 231, 253, 265, 275, 315, 345, 371, 385, 477, 483, 495, 525, 575, 583, 693, 759, 795, 805, 825, 1035, 1113, 1155, 1219, 1265, 1325, 1449, 1575, 1725, 1749, 1771, 1855, 1925, 2277, 2385, 2415, 2475, 2915, 3339, 3465, 3657, 3795, 3975, 4025, 4081, 5175, 5247, 5313, 5565, 5775, 6095, 6325, 7245, 8533, 8745, 8855, 9275, 10971, 11385, 11925, 12075, 12243, 13409, 14575, 15939, 16695, 17325, 18285, 18975, 20405, 25599, 26235, 26565, 27825, 30475, 36225, 36729, 40227, 42665, 43725, 44275, 54855, 56925, 61215, 67045, 76797, 79695, 83475, 91425, 93863, 102025, 120681, 127995, 131175, 132825, 183645, 201135, 213325, 274275, 281589, 306075, 335225, 383985, 398475, 469315, 603405, 639975, 844767, 918225, 1005675, 1407945, 1919925, 2346575, 3017025, 4223835, 7039725, 21119175]

約数ペア:

[(1, 21119175), (3, 7039725), (5, 4223835), (7, 3017025), (9, 2346575), (11, 1919925), (15, 1407945), (21, 1005675), (23, 918225), (25, 844767), (33, 639975), (35, 603405), (45, 469315), (53, 398475), (55, 383985), (63, 335225), (69, 306075), (75, 281589), (77, 274275), (99, 213325), (105, 201135), (115, 183645), (159, 132825), (161, 131175), (165, 127995), (175, 120681), (207, 102025), (225, 93863), (231, 91425), (253, 83475), (265, 79695), (275, 76797), (315, 67045), (345, 61215), (371, 56925), (385, 54855), (477, 44275), (483, 43725), (495, 42665), (525, 40227), (575, 36729), (583, 36225), (693, 30475), (759, 27825), (795, 26565), (805, 26235), (825, 25599), (1035, 20405), (1113, 18975), (1155, 18285), (1219, 17325), (1265, 16695), (1325, 15939), (1449, 14575), (1575, 13409), (1725, 12243), (1749, 12075), (1771, 11925), (1855, 11385), (1925, 10971), (2277, 9275), (2385, 8855), (2415, 8745), (2475, 8533), (2915, 7245), (3339, 6325), (3465, 6095), (3657, 5775), (3795, 5565), (3975, 5313), (4025, 5247), (4081, 5175)]