21982688

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7549}}^1$

素因数の和:7579

約数の個数: 48

約数和(自身を含む): 53272800

約数和(自身を除く): 31290112

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, 7549, 15098, 30196, 52843, 60392, 98137, 105686, 120784, 196274, 211372, 241568, 392548, 422744, 686959, 785096, 845488, 1373918, 1570192, 1690976, 2747836, 3140384, 5495672, 10991344, 21982688]

約数ペア:

[(1, 21982688), (2, 10991344), (4, 5495672), (7, 3140384), (8, 2747836), (13, 1690976), (14, 1570192), (16, 1373918), (26, 845488), (28, 785096), (32, 686959), (52, 422744), (56, 392548), (91, 241568), (104, 211372), (112, 196274), (182, 120784), (208, 105686), (224, 98137), (364, 60392), (416, 52843), (728, 30196), (1456, 15098), (2912, 7549)]