21874112

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:517

約数の個数: 56

約数和(自身を含む): 47621952

約数和(自身を除く): 25747840

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 61, 64, 104, 122, 208, 244, 416, 431, 488, 793, 832, 862, 976, 1586, 1724, 1952, 3172, 3448, 3904, 5603, 6344, 6896, 11206, 12688, 13792, 22412, 25376, 26291, 27584, 44824, 50752, 52582, 89648, 105164, 179296, 210328, 341783, 358592, 420656, 683566, 841312, 1367132, 1682624, 2734264, 5468528, 10937056, 21874112]

約数ペア:

[(1, 21874112), (2, 10937056), (4, 5468528), (8, 2734264), (13, 1682624), (16, 1367132), (26, 841312), (32, 683566), (52, 420656), (61, 358592), (64, 341783), (104, 210328), (122, 179296), (208, 105164), (244, 89648), (416, 52582), (431, 50752), (488, 44824), (793, 27584), (832, 26291), (862, 25376), (976, 22412), (1586, 13792), (1724, 12688), (1952, 11206), (3172, 6896), (3448, 6344), (3904, 5603)]