21731616

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{1237}}^1$

素因数の和:1314

約数の個数: 72

約数和(自身を含む): 62863164

約数和(自身を除く): 41131548

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 72, 96, 122, 144, 183, 244, 288, 366, 488, 549, 732, 976, 1098, 1237, 1464, 1952, 2196, 2474, 2928, 3711, 4392, 4948, 5856, 7422, 8784, 9896, 11133, 14844, 17568, 19792, 22266, 29688, 39584, 44532, 59376, 75457, 89064, 118752, 150914, 178128, 226371, 301828, 356256, 452742, 603656, 679113, 905484, 1207312, 1358226, 1810968, 2414624, 2716452, 3621936, 5432904, 7243872, 10865808, 21731616]

約数ペア:

[(1, 21731616), (2, 10865808), (3, 7243872), (4, 5432904), (6, 3621936), (8, 2716452), (9, 2414624), (12, 1810968), (16, 1358226), (18, 1207312), (24, 905484), (32, 679113), (36, 603656), (48, 452742), (61, 356256), (72, 301828), (96, 226371), (122, 178128), (144, 150914), (183, 118752), (244, 89064), (288, 75457), (366, 59376), (488, 44532), (549, 39584), (732, 29688), (976, 22266), (1098, 19792), (1237, 17568), (1464, 14844), (1952, 11133), (2196, 9896), (2474, 8784), (2928, 7422), (3711, 5856), (4392, 4948)]