21286308

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1049}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 52920000

約数和(自身を除く): 31633692

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 89, 114, 178, 228, 267, 356, 534, 1049, 1068, 1691, 2098, 3147, 3382, 4196, 5073, 6294, 6764, 10146, 12588, 19931, 20292, 39862, 59793, 79724, 93361, 119586, 186722, 239172, 280083, 373444, 560166, 1120332, 1773859, 3547718, 5321577, 7095436, 10643154, 21286308]

約数ペア:

[(1, 21286308), (2, 10643154), (3, 7095436), (4, 5321577), (6, 3547718), (12, 1773859), (19, 1120332), (38, 560166), (57, 373444), (76, 280083), (89, 239172), (114, 186722), (178, 119586), (228, 93361), (267, 79724), (356, 59793), (534, 39862), (1049, 20292), (1068, 19931), (1691, 12588), (2098, 10146), (3147, 6764), (3382, 6294), (4196, 5073)]