21070428

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{359}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 50722560

約数和(自身を除く): 29652132

約数列:

[1, 2, 3, 4, 6, 12, 67, 73, 134, 146, 201, 219, 268, 292, 359, 402, 438, 718, 804, 876, 1077, 1436, 2154, 4308, 4891, 9782, 14673, 19564, 24053, 26207, 29346, 48106, 52414, 58692, 72159, 78621, 96212, 104828, 144318, 157242, 288636, 314484, 1755869, 3511738, 5267607, 7023476, 10535214, 21070428]

約数ペア:

[(1, 21070428), (2, 10535214), (3, 7023476), (4, 5267607), (6, 3511738), (12, 1755869), (67, 314484), (73, 288636), (134, 157242), (146, 144318), (201, 104828), (219, 96212), (268, 78621), (292, 72159), (359, 58692), (402, 52414), (438, 48106), (718, 29346), (804, 26207), (876, 24053), (1077, 19564), (1436, 14673), (2154, 9782), (4308, 4891)]