21630994

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 43794432

約数和(自身を除く): 22163438

約数列:

[1, 2, 7, 11, 14, 22, 23, 31, 46, 62, 77, 154, 161, 197, 217, 253, 322, 341, 394, 434, 506, 682, 713, 1379, 1426, 1771, 2167, 2387, 2758, 3542, 4334, 4531, 4774, 4991, 6107, 7843, 9062, 9982, 12214, 15169, 15686, 30338, 31717, 42749, 49841, 54901, 63434, 67177, 85498, 99682, 109802, 134354, 140461, 280922, 348887, 470239, 697774, 940478, 983227, 1545071, 1966454, 3090142, 10815497, 21630994]

約数ペア:

[(1, 21630994), (2, 10815497), (7, 3090142), (11, 1966454), (14, 1545071), (22, 983227), (23, 940478), (31, 697774), (46, 470239), (62, 348887), (77, 280922), (154, 140461), (161, 134354), (197, 109802), (217, 99682), (253, 85498), (322, 67177), (341, 63434), (394, 54901), (434, 49841), (506, 42749), (682, 31717), (713, 30338), (1379, 15686), (1426, 15169), (1771, 12214), (2167, 9982), (2387, 9062), (2758, 7843), (3542, 6107), (4334, 4991), (4531, 4774)]