21396228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1423}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 57415680

約数和(自身を除く): 36019452

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 179, 358, 537, 716, 1074, 1253, 1423, 2148, 2506, 2846, 3759, 4269, 5012, 5692, 7518, 8538, 9961, 15036, 17076, 19922, 29883, 39844, 59766, 119532, 254717, 509434, 764151, 1018868, 1528302, 1783019, 3056604, 3566038, 5349057, 7132076, 10698114, 21396228]

約数ペア:

[(1, 21396228), (2, 10698114), (3, 7132076), (4, 5349057), (6, 3566038), (7, 3056604), (12, 1783019), (14, 1528302), (21, 1018868), (28, 764151), (42, 509434), (84, 254717), (179, 119532), (358, 59766), (537, 39844), (716, 29883), (1074, 19922), (1253, 17076), (1423, 15036), (2148, 9961), (2506, 8538), (2846, 7518), (3759, 5692), (4269, 5012)]