20899944

素因数分解:

$2^3\times 3^5\times {\mathrm{13}}^1\times {\mathrm{827}}^1$

素因数の和:861

約数の個数: 96

約数和(自身を含む): 63292320

約数和(自身を除く): 42392376

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 27, 36, 39, 52, 54, 72, 78, 81, 104, 108, 117, 156, 162, 216, 234, 243, 312, 324, 351, 468, 486, 648, 702, 827, 936, 972, 1053, 1404, 1654, 1944, 2106, 2481, 2808, 3159, 3308, 4212, 4962, 6318, 6616, 7443, 8424, 9924, 10751, 12636, 14886, 19848, 21502, 22329, 25272, 29772, 32253, 43004, 44658, 59544, 64506, 66987, 86008, 89316, 96759, 129012, 133974, 178632, 193518, 200961, 258024, 267948, 290277, 387036, 401922, 535896, 580554, 774072, 803844, 870831, 1161108, 1607688, 1741662, 2322216, 2612493, 3483324, 5224986, 6966648, 10449972, 20899944]

約数ペア:

[(1, 20899944), (2, 10449972), (3, 6966648), (4, 5224986), (6, 3483324), (8, 2612493), (9, 2322216), (12, 1741662), (13, 1607688), (18, 1161108), (24, 870831), (26, 803844), (27, 774072), (36, 580554), (39, 535896), (52, 401922), (54, 387036), (72, 290277), (78, 267948), (81, 258024), (104, 200961), (108, 193518), (117, 178632), (156, 133974), (162, 129012), (216, 96759), (234, 89316), (243, 86008), (312, 66987), (324, 64506), (351, 59544), (468, 44658), (486, 43004), (648, 32253), (702, 29772), (827, 25272), (936, 22329), (972, 21502), (1053, 19848), (1404, 14886), (1654, 12636), (1944, 10751), (2106, 9924), (2481, 8424), (2808, 7443), (3159, 6616), (3308, 6318), (4212, 4962)]