18815265

素因数分解:

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

素因数の和:108

約数の個数: 96

約数和(自身を含む): 40435200

約数和(自身を除く): 21619935

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 53, 63, 69, 105, 115, 147, 159, 161, 207, 245, 265, 315, 343, 345, 371, 441, 477, 483, 735, 795, 805, 1029, 1035, 1113, 1127, 1219, 1449, 1715, 1855, 2205, 2385, 2415, 2597, 3087, 3339, 3381, 3657, 5145, 5565, 5635, 6095, 7245, 7791, 7889, 8533, 10143, 10971, 12985, 15435, 16695, 16905, 18179, 18285, 23373, 23667, 25599, 38955, 39445, 42665, 50715, 54537, 54855, 59731, 71001, 76797, 90895, 116865, 118335, 127995, 163611, 179193, 272685, 298655, 355005, 383985, 418117, 537579, 818055, 895965, 1254351, 2090585, 2687895, 3763053, 6271755, 18815265]

約数ペア:

[(1, 18815265), (3, 6271755), (5, 3763053), (7, 2687895), (9, 2090585), (15, 1254351), (21, 895965), (23, 818055), (35, 537579), (45, 418117), (49, 383985), (53, 355005), (63, 298655), (69, 272685), (105, 179193), (115, 163611), (147, 127995), (159, 118335), (161, 116865), (207, 90895), (245, 76797), (265, 71001), (315, 59731), (343, 54855), (345, 54537), (371, 50715), (441, 42665), (477, 39445), (483, 38955), (735, 25599), (795, 23667), (805, 23373), (1029, 18285), (1035, 18179), (1113, 16905), (1127, 16695), (1219, 15435), (1449, 12985), (1715, 10971), (1855, 10143), (2205, 8533), (2385, 7889), (2415, 7791), (2597, 7245), (3087, 6095), (3339, 5635), (3381, 5565), (3657, 5145)]