21503898

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{7069}}^1$

素因数の和:7103

約数の個数: 36

約数和(自身を含む): 50458590

約数和(自身を除く): 28954692

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 169, 234, 338, 507, 1014, 1521, 3042, 7069, 14138, 21207, 42414, 63621, 91897, 127242, 183794, 275691, 551382, 827073, 1194661, 1654146, 2389322, 3583983, 7167966, 10751949, 21503898]

約数ペア:

[(1, 21503898), (2, 10751949), (3, 7167966), (6, 3583983), (9, 2389322), (13, 1654146), (18, 1194661), (26, 827073), (39, 551382), (78, 275691), (117, 183794), (169, 127242), (234, 91897), (338, 63621), (507, 42414), (1014, 21207), (1521, 14138), (3042, 7069)]