21999276

素因数分解:

$2^2\times 3^5\times {\mathrm{13}}^1\times {\mathrm{1741}}^1$

素因数の和:1773

約数の個数: 72

約数和(自身を含む): 62140624

約数和(自身を除く): 40141348

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 972, 1053, 1404, 1741, 2106, 3159, 3482, 4212, 5223, 6318, 6964, 10446, 12636, 15669, 20892, 22633, 31338, 45266, 47007, 62676, 67899, 90532, 94014, 135798, 141021, 188028, 203697, 271596, 282042, 407394, 423063, 564084, 611091, 814788, 846126, 1222182, 1692252, 1833273, 2444364, 3666546, 5499819, 7333092, 10999638, 21999276]

約数ペア:

[(1, 21999276), (2, 10999638), (3, 7333092), (4, 5499819), (6, 3666546), (9, 2444364), (12, 1833273), (13, 1692252), (18, 1222182), (26, 846126), (27, 814788), (36, 611091), (39, 564084), (52, 423063), (54, 407394), (78, 282042), (81, 271596), (108, 203697), (117, 188028), (156, 141021), (162, 135798), (234, 94014), (243, 90532), (324, 67899), (351, 62676), (468, 47007), (486, 45266), (702, 31338), (972, 22633), (1053, 20892), (1404, 15669), (1741, 12636), (2106, 10446), (3159, 6964), (3482, 6318), (4212, 5223)]