21682892

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 49124880

約数和(自身を除く): 27441988

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 89, 98, 113, 154, 178, 196, 226, 308, 356, 452, 539, 623, 791, 979, 1078, 1243, 1246, 1582, 1958, 2156, 2486, 2492, 3164, 3916, 4361, 4972, 5537, 6853, 8701, 8722, 10057, 11074, 13706, 17402, 17444, 20114, 22148, 27412, 34804, 40228, 47971, 60907, 70399, 95942, 110627, 121814, 140798, 191884, 221254, 243628, 281596, 442508, 492793, 774389, 985586, 1548778, 1971172, 3097556, 5420723, 10841446, 21682892]

約数ペア:

[(1, 21682892), (2, 10841446), (4, 5420723), (7, 3097556), (11, 1971172), (14, 1548778), (22, 985586), (28, 774389), (44, 492793), (49, 442508), (77, 281596), (89, 243628), (98, 221254), (113, 191884), (154, 140798), (178, 121814), (196, 110627), (226, 95942), (308, 70399), (356, 60907), (452, 47971), (539, 40228), (623, 34804), (791, 27412), (979, 22148), (1078, 20114), (1243, 17444), (1246, 17402), (1582, 13706), (1958, 11074), (2156, 10057), (2486, 8722), (2492, 8701), (3164, 6853), (3916, 5537), (4361, 4972)]