21103264

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7247}}^1$

素因数の和:7277

約数の個数: 48

約数和(自身を含む): 51141888

約数和(自身を除く): 30038624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 182, 208, 224, 364, 416, 728, 1456, 2912, 7247, 14494, 28988, 50729, 57976, 94211, 101458, 115952, 188422, 202916, 231904, 376844, 405832, 659477, 753688, 811664, 1318954, 1507376, 1623328, 2637908, 3014752, 5275816, 10551632, 21103264]

約数ペア:

[(1, 21103264), (2, 10551632), (4, 5275816), (7, 3014752), (8, 2637908), (13, 1623328), (14, 1507376), (16, 1318954), (26, 811664), (28, 753688), (32, 659477), (52, 405832), (56, 376844), (91, 231904), (104, 202916), (112, 188422), (182, 115952), (208, 101458), (224, 94211), (364, 57976), (416, 50729), (728, 28988), (1456, 14494), (2912, 7247)]