21203754

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1901}}^1$

素因数の和:1943

約数の個数: 48

約数和(自身を含む): 50121504

約数和(自身を除く): 28917750

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 169, 286, 338, 429, 507, 858, 1014, 1859, 1901, 3718, 3802, 5577, 5703, 11154, 11406, 20911, 24713, 41822, 49426, 62733, 74139, 125466, 148278, 271843, 321269, 543686, 642538, 815529, 963807, 1631058, 1927614, 3533959, 7067918, 10601877, 21203754]

約数ペア:

[(1, 21203754), (2, 10601877), (3, 7067918), (6, 3533959), (11, 1927614), (13, 1631058), (22, 963807), (26, 815529), (33, 642538), (39, 543686), (66, 321269), (78, 271843), (143, 148278), (169, 125466), (286, 74139), (338, 62733), (429, 49426), (507, 41822), (858, 24713), (1014, 20911), (1859, 11406), (1901, 11154), (3718, 5703), (3802, 5577)]