21904470

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{4967}}^1$

素因数の和:4994

約数の個数: 72

約数和(自身を含む): 66263184

約数和(自身を除く): 44358714

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 63, 70, 90, 98, 105, 126, 147, 210, 245, 294, 315, 441, 490, 630, 735, 882, 1470, 2205, 4410, 4967, 9934, 14901, 24835, 29802, 34769, 44703, 49670, 69538, 74505, 89406, 104307, 149010, 173845, 208614, 223515, 243383, 312921, 347690, 447030, 486766, 521535, 625842, 730149, 1043070, 1216915, 1460298, 1564605, 2190447, 2433830, 3129210, 3650745, 4380894, 7301490, 10952235, 21904470]

約数ペア:

[(1, 21904470), (2, 10952235), (3, 7301490), (5, 4380894), (6, 3650745), (7, 3129210), (9, 2433830), (10, 2190447), (14, 1564605), (15, 1460298), (18, 1216915), (21, 1043070), (30, 730149), (35, 625842), (42, 521535), (45, 486766), (49, 447030), (63, 347690), (70, 312921), (90, 243383), (98, 223515), (105, 208614), (126, 173845), (147, 149010), (210, 104307), (245, 89406), (294, 74505), (315, 69538), (441, 49670), (490, 44703), (630, 34769), (735, 29802), (882, 24835), (1470, 14901), (2205, 9934), (4410, 4967)]