21437988

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 108

約数和(自身を含む): 61057584

約数和(自身を除く): 39619596

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 31, 33, 39, 44, 52, 62, 66, 78, 93, 124, 132, 143, 156, 169, 186, 286, 338, 341, 372, 403, 429, 507, 572, 676, 682, 806, 858, 961, 1014, 1023, 1209, 1364, 1612, 1716, 1859, 1922, 2028, 2046, 2418, 2883, 3718, 3844, 4092, 4433, 4836, 5239, 5577, 5766, 7436, 8866, 10478, 10571, 11154, 11532, 12493, 13299, 15717, 17732, 20956, 21142, 22308, 24986, 26598, 31434, 31713, 37479, 42284, 49972, 53196, 57629, 62868, 63426, 74958, 115258, 126852, 137423, 149916, 162409, 172887, 230516, 274846, 324818, 345774, 412269, 487227, 549692, 649636, 691548, 824538, 974454, 1649076, 1786499, 1948908, 3572998, 5359497, 7145996, 10718994, 21437988]

約数ペア:

[(1, 21437988), (2, 10718994), (3, 7145996), (4, 5359497), (6, 3572998), (11, 1948908), (12, 1786499), (13, 1649076), (22, 974454), (26, 824538), (31, 691548), (33, 649636), (39, 549692), (44, 487227), (52, 412269), (62, 345774), (66, 324818), (78, 274846), (93, 230516), (124, 172887), (132, 162409), (143, 149916), (156, 137423), (169, 126852), (186, 115258), (286, 74958), (338, 63426), (341, 62868), (372, 57629), (403, 53196), (429, 49972), (507, 42284), (572, 37479), (676, 31713), (682, 31434), (806, 26598), (858, 24986), (961, 22308), (1014, 21142), (1023, 20956), (1209, 17732), (1364, 15717), (1612, 13299), (1716, 12493), (1859, 11532), (1922, 11154), (2028, 10571), (2046, 10478), (2418, 8866), (2883, 7436), (3718, 5766), (3844, 5577), (4092, 5239), (4433, 4836)]