21250008

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{311}}^1$

素因数の和:409

約数の個数: 96

約数和(自身を含む): 63030240

約数和(自身を除く): 41780232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 73, 78, 104, 117, 146, 156, 219, 234, 292, 311, 312, 438, 468, 584, 622, 657, 876, 933, 936, 949, 1244, 1314, 1752, 1866, 1898, 2488, 2628, 2799, 2847, 3732, 3796, 4043, 5256, 5598, 5694, 7464, 7592, 8086, 8541, 11196, 11388, 12129, 16172, 17082, 22392, 22703, 22776, 24258, 32344, 34164, 36387, 45406, 48516, 68109, 68328, 72774, 90812, 97032, 136218, 145548, 181624, 204327, 272436, 291096, 295139, 408654, 544872, 590278, 817308, 885417, 1180556, 1634616, 1770834, 2361112, 2656251, 3541668, 5312502, 7083336, 10625004, 21250008]

約数ペア:

[(1, 21250008), (2, 10625004), (3, 7083336), (4, 5312502), (6, 3541668), (8, 2656251), (9, 2361112), (12, 1770834), (13, 1634616), (18, 1180556), (24, 885417), (26, 817308), (36, 590278), (39, 544872), (52, 408654), (72, 295139), (73, 291096), (78, 272436), (104, 204327), (117, 181624), (146, 145548), (156, 136218), (219, 97032), (234, 90812), (292, 72774), (311, 68328), (312, 68109), (438, 48516), (468, 45406), (584, 36387), (622, 34164), (657, 32344), (876, 24258), (933, 22776), (936, 22703), (949, 22392), (1244, 17082), (1314, 16172), (1752, 12129), (1866, 11388), (1898, 11196), (2488, 8541), (2628, 8086), (2799, 7592), (2847, 7464), (3732, 5694), (3796, 5598), (4043, 5256)]