21223072

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3041

約数の個数: 48

約数和(自身を含む): 47659752

約数和(自身を除く): 26436680

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 3001, 3536, 6002, 7072, 12004, 24008, 39013, 48016, 51017, 78026, 96032, 102034, 156052, 204068, 312104, 408136, 624208, 663221, 816272, 1248416, 1326442, 1632544, 2652884, 5305768, 10611536, 21223072]

約数ペア:

[(1, 21223072), (2, 10611536), (4, 5305768), (8, 2652884), (13, 1632544), (16, 1326442), (17, 1248416), (26, 816272), (32, 663221), (34, 624208), (52, 408136), (68, 312104), (104, 204068), (136, 156052), (208, 102034), (221, 96032), (272, 78026), (416, 51017), (442, 48016), (544, 39013), (884, 24008), (1768, 12004), (3001, 7072), (3536, 6002)]