20408909898

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{1021}}^2$

素因数の和:2311

約数の個数: 48

約数和(自身を含む): 44176049568

約数和(自身を除く): 23767139670

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 251, 502, 753, 1021, 1506, 2042, 3063, 3263, 6126, 6526, 9789, 13273, 19578, 26546, 39819, 79638, 256271, 512542, 768813, 1042441, 1537626, 2084882, 3127323, 3331523, 6254646, 6663046, 9994569, 13551733, 19989138, 27103466, 40655199, 81310398, 261652691, 523305382, 784958073, 1569916146, 3401484983, 6802969966, 10204454949, 20408909898]

約数ペア:

[(1, 20408909898), (2, 10204454949), (3, 6802969966), (6, 3401484983), (13, 1569916146), (26, 784958073), (39, 523305382), (78, 261652691), (251, 81310398), (502, 40655199), (753, 27103466), (1021, 19989138), (1506, 13551733), (2042, 9994569), (3063, 6663046), (3263, 6254646), (6126, 3331523), (6526, 3127323), (9789, 2084882), (13273, 1537626), (19578, 1042441), (26546, 768813), (39819, 512542), (79638, 256271)]