17723979

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 35642880

約数和(自身を除く): 17918901

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 51, 57, 63, 67, 91, 117, 119, 133, 153, 171, 201, 221, 247, 273, 323, 357, 399, 469, 603, 663, 741, 819, 871, 969, 1071, 1139, 1197, 1273, 1407, 1547, 1729, 1989, 2223, 2261, 2613, 2907, 3417, 3819, 4199, 4221, 4641, 5187, 6097, 6783, 7839, 7973, 8911, 10251, 11457, 12597, 13923, 14807, 15561, 16549, 18291, 20349, 21641, 23919, 26733, 29393, 37791, 44421, 49647, 54873, 64923, 71757, 80199, 88179, 103649, 115843, 133263, 148941, 151487, 194769, 264537, 281333, 310947, 347529, 454461, 843999, 932841, 1042587, 1363383, 1969331, 2531997, 5907993, 17723979]

約数ペア:

[(1, 17723979), (3, 5907993), (7, 2531997), (9, 1969331), (13, 1363383), (17, 1042587), (19, 932841), (21, 843999), (39, 454461), (51, 347529), (57, 310947), (63, 281333), (67, 264537), (91, 194769), (117, 151487), (119, 148941), (133, 133263), (153, 115843), (171, 103649), (201, 88179), (221, 80199), (247, 71757), (273, 64923), (323, 54873), (357, 49647), (399, 44421), (469, 37791), (603, 29393), (663, 26733), (741, 23919), (819, 21641), (871, 20349), (969, 18291), (1071, 16549), (1139, 15561), (1197, 14807), (1273, 13923), (1407, 12597), (1547, 11457), (1729, 10251), (1989, 8911), (2223, 7973), (2261, 7839), (2613, 6783), (2907, 6097), (3417, 5187), (3819, 4641), (4199, 4221)]