21521286

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1327}}^1$

素因数の和:1405

約数の個数: 48

約数和(自身を含む): 50341824

約数和(自身を除く): 28820538

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 53, 102, 106, 153, 159, 306, 318, 477, 901, 954, 1327, 1802, 2654, 2703, 3981, 5406, 7962, 8109, 11943, 16218, 22559, 23886, 45118, 67677, 70331, 135354, 140662, 203031, 210993, 406062, 421986, 632979, 1195627, 1265958, 2391254, 3586881, 7173762, 10760643, 21521286]

約数ペア:

[(1, 21521286), (2, 10760643), (3, 7173762), (6, 3586881), (9, 2391254), (17, 1265958), (18, 1195627), (34, 632979), (51, 421986), (53, 406062), (102, 210993), (106, 203031), (153, 140662), (159, 135354), (306, 70331), (318, 67677), (477, 45118), (901, 23886), (954, 22559), (1327, 16218), (1802, 11943), (2654, 8109), (2703, 7962), (3981, 5406)]