21790392

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{331}}^1$

素因数の和:564

約数の個数: 64

約数和(自身を含む): 59122560

約数和(自身を除く): 37332168

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 211, 312, 331, 422, 633, 662, 844, 993, 1266, 1324, 1688, 1986, 2532, 2648, 2743, 3972, 4303, 5064, 5486, 7944, 8229, 8606, 10972, 12909, 16458, 17212, 21944, 25818, 32916, 34424, 51636, 65832, 69841, 103272, 139682, 209523, 279364, 419046, 558728, 838092, 907933, 1676184, 1815866, 2723799, 3631732, 5447598, 7263464, 10895196, 21790392]

約数ペア:

[(1, 21790392), (2, 10895196), (3, 7263464), (4, 5447598), (6, 3631732), (8, 2723799), (12, 1815866), (13, 1676184), (24, 907933), (26, 838092), (39, 558728), (52, 419046), (78, 279364), (104, 209523), (156, 139682), (211, 103272), (312, 69841), (331, 65832), (422, 51636), (633, 34424), (662, 32916), (844, 25818), (993, 21944), (1266, 17212), (1324, 16458), (1688, 12909), (1986, 10972), (2532, 8606), (2648, 8229), (2743, 7944), (3972, 5486), (4303, 5064)]