20937348536

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{991}}^1\times {\mathrm{3833}}^1$

素因数の和:4896

約数の個数: 64

約数和(自身を含む): 43129739520

約数和(自身を除く): 22192390984

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 991, 1378, 1982, 2756, 3833, 3964, 5512, 7666, 7928, 12883, 15332, 25766, 30664, 49829, 51532, 52523, 99658, 103064, 105046, 199316, 203149, 210092, 398632, 406298, 420184, 682799, 812596, 1365598, 1625192, 2640937, 2731196, 3798503, 5281874, 5462392, 7597006, 10563748, 15194012, 21127496, 30388024, 49380539, 98761078, 197522156, 201320659, 395044312, 402641318, 805282636, 1610565272, 2617168567, 5234337134, 10468674268, 20937348536]

約数ペア:

[(1, 20937348536), (2, 10468674268), (4, 5234337134), (8, 2617168567), (13, 1610565272), (26, 805282636), (52, 402641318), (53, 395044312), (104, 201320659), (106, 197522156), (212, 98761078), (424, 49380539), (689, 30388024), (991, 21127496), (1378, 15194012), (1982, 10563748), (2756, 7597006), (3833, 5462392), (3964, 5281874), (5512, 3798503), (7666, 2731196), (7928, 2640937), (12883, 1625192), (15332, 1365598), (25766, 812596), (30664, 682799), (49829, 420184), (51532, 406298), (52523, 398632), (99658, 210092), (103064, 203149), (105046, 199316)]