19887228

素因数分解:

$2^2\times 3^3\times {\mathrm{89}}^1\times {\mathrm{2069}}^1$

素因数の和:2171

約数の個数: 48

約数和(自身を含む): 52164000

約数和(自身を除く): 32276772

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 89, 108, 178, 267, 356, 534, 801, 1068, 1602, 2069, 2403, 3204, 4138, 4806, 6207, 8276, 9612, 12414, 18621, 24828, 37242, 55863, 74484, 111726, 184141, 223452, 368282, 552423, 736564, 1104846, 1657269, 2209692, 3314538, 4971807, 6629076, 9943614, 19887228]

約数ペア:

[(1, 19887228), (2, 9943614), (3, 6629076), (4, 4971807), (6, 3314538), (9, 2209692), (12, 1657269), (18, 1104846), (27, 736564), (36, 552423), (54, 368282), (89, 223452), (108, 184141), (178, 111726), (267, 74484), (356, 55863), (534, 37242), (801, 24828), (1068, 18621), (1602, 12414), (2069, 9612), (2403, 8276), (3204, 6207), (4138, 4806)]