16221303

素因数分解:

$3^4\times 7^2\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 60

約数和(自身を含む): 29077752

約数和(自身を除く): 12856449

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 67, 81, 147, 183, 189, 201, 427, 441, 469, 549, 567, 603, 1281, 1323, 1407, 1647, 1809, 2989, 3283, 3843, 3969, 4087, 4221, 4941, 5427, 8967, 9849, 11529, 12261, 12663, 26901, 28609, 29547, 34587, 36783, 37989, 80703, 85827, 88641, 110349, 200263, 242109, 257481, 265923, 331047, 600789, 772443, 1802367, 2317329, 5407101, 16221303]

約数ペア:

[(1, 16221303), (3, 5407101), (7, 2317329), (9, 1802367), (21, 772443), (27, 600789), (49, 331047), (61, 265923), (63, 257481), (67, 242109), (81, 200263), (147, 110349), (183, 88641), (189, 85827), (201, 80703), (427, 37989), (441, 36783), (469, 34587), (549, 29547), (567, 28609), (603, 26901), (1281, 12663), (1323, 12261), (1407, 11529), (1647, 9849), (1809, 8967), (2989, 5427), (3283, 4941), (3843, 4221), (3969, 4087)]