19454656

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1$

素因数の和:441

約数の個数: 56

約数和(自身を含む): 42316400

約数和(自身を除く): 22861744

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 67, 104, 134, 208, 268, 349, 416, 536, 698, 832, 871, 1072, 1396, 1742, 2144, 2792, 3484, 4288, 4537, 5584, 6968, 9074, 11168, 13936, 18148, 22336, 23383, 27872, 36296, 46766, 55744, 72592, 93532, 145184, 187064, 290368, 303979, 374128, 607958, 748256, 1215916, 1496512, 2431832, 4863664, 9727328, 19454656]

約数ペア:

[(1, 19454656), (2, 9727328), (4, 4863664), (8, 2431832), (13, 1496512), (16, 1215916), (26, 748256), (32, 607958), (52, 374128), (64, 303979), (67, 290368), (104, 187064), (134, 145184), (208, 93532), (268, 72592), (349, 55744), (416, 46766), (536, 36296), (698, 27872), (832, 23383), (871, 22336), (1072, 18148), (1396, 13936), (1742, 11168), (2144, 9074), (2792, 6968), (3484, 5584), (4288, 4537)]