21416226

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:587

約数の個数: 64

約数和(自身を含む): 50512896

約数和(自身を除く): 29096670

約数列:

[1, 2, 3, 6, 13, 17, 26, 31, 34, 39, 51, 62, 78, 93, 102, 186, 221, 403, 442, 521, 527, 663, 806, 1042, 1054, 1209, 1326, 1563, 1581, 2418, 3126, 3162, 6773, 6851, 8857, 13546, 13702, 16151, 17714, 20319, 20553, 26571, 32302, 40638, 41106, 48453, 53142, 96906, 115141, 209963, 230282, 274567, 345423, 419926, 549134, 629889, 690846, 823701, 1259778, 1647402, 3569371, 7138742, 10708113, 21416226]

約数ペア:

[(1, 21416226), (2, 10708113), (3, 7138742), (6, 3569371), (13, 1647402), (17, 1259778), (26, 823701), (31, 690846), (34, 629889), (39, 549134), (51, 419926), (62, 345423), (78, 274567), (93, 230282), (102, 209963), (186, 115141), (221, 96906), (403, 53142), (442, 48453), (521, 41106), (527, 40638), (663, 32302), (806, 26571), (1042, 20553), (1054, 20319), (1209, 17714), (1326, 16151), (1563, 13702), (1581, 13546), (2418, 8857), (3126, 6851), (3162, 6773)]